Blue Yeti USB Microphone sounds alienated when I monitor or play back though it?

I have a Blue Yeti USB condenser microphone that bought (ironically) a year ago around this same date. The microphone always worked great but today when I plugged in I couldn't hear myself on the headphones (that come from the jack beneath it) usually when this happens I just go to control panel and check the settings and then it's ficked, whatever the mic catches I can hear it through the headphones. So I did that, I went to the settings and set it all up but it didn't work this.
I tried everything, from restarting the computer, until changing the cable, changing the headphones, the setting, everything ! Nothing worked obviously.
After a while I noticed that if I turned the settings all the way up, both on the computer and the microphone then I could kind of head myself on the headphone, but it was really low and before it used to sound loud and clear. I kept trying to figure out what was wrong with it and then I noticed that when I I selected the stereo pattern the monitoring feature sounded lour and clear just like before, but on the other patterns it just kept sounding weird. Nonetheless any sound that came from the computer (as when you use the mic as a sound interface) sound just as weird an alienated as before.It sound like it was very far and with a lot of reverb.
So long story short I tried everything until I decided I would open up the mic. So I did and everything looked clean and nice, I tested a few things.
Within the microphone there are two boards tied together by a series of pins. One is the logic board and the other is the analog board.
On the analog board there's the Pattern slector (cardiod, omni, stereo etc) and the gain selector. Also the capsules were connected to this board.
The logic board had the mute button, the volume (for monitoring) and te IC. Now here's what I think:
The problem is on the logic board and I know this before while the mic was open I plugged in the and moved all the switches just like I'd done before and the problem kept going. At first I thought the problem might be the analog board, maybe one of the switches was borken.
So I unplug the analog board from the logic board (Note: the mini USB and the headphone jack are plugged tot he logic board) so I plugged the logic board to the computer and it worked as a sound interface, but the problem was still there. Any sound from the computer going through the logic board sounded just as weird as before. This helped leave the analog board out as a source of the problem.
Now my question is, have you encountered this problem before ? How can I fix it. I was thinking maybe I could get the ICs datasheet and test with the multimeter to see if all of its voltages were correct, that could help me rule out which ones were broken and if I was lucky I could buy it new and replace it. The problem is that I couldn't find the datasheets anywhere so I'm right where I started.

Besides the Volume switch, the mute button and the 3 ICs on the logic board there's a bunch of tiny resistors, capacitors and inductors which could also be the source of the problem, but I doubt it.
The ICs on the board have the following numbers and letter on them:
-Big one that looks like a processor: MICRONAS UAC 35768 H7 || it also had: 242558.003.61MKF || and: 0321
-Small one right above the mini USB port: ATMLH952 ||also:208 1|| and: 9H1883A
-Tiny one next to the mute button: AXX (which seems to be a 1 or perhaps a capital i) 1A || and also: +

Just yesterday I recorded a video with this mic, I rendered it and it took about 12 hours, the mic was plugged in all this time, I also left it plugged in after that until a few hours ago when I intended to record a song and found out it didn't work (I'm telling you this just in case leaving it plugged all this time was the reason it broke and it might lead us to the borken part).

I totally depend on this microphone for everything, I record everything with it and it's the only one I have, I don't what I'll do without it. If you know what could be causing the trouble please help me out. Thank you very much for your time !

Could be a mic problem. Or a USB problem. Or a circuit board problem.

Maybe a grounding problem?

You have a number of spots that should each be tested.

Can you connect the mic by itself to an audio system? You'll also need to power it, with its resistor and capacitor intervening as well. This will require jumpers. Maybe some unsoldering as well.

You say you get reverb. It suggests there's a feedback loop. From the mic board, into the computer, then back to the mic board? Is there a setting for playing back everything coming in the audio input?

Can you be sure it's not a problem with the computer? Or with the operating system? Can you give it audio from something other than your mic? Even a speaker can serve as a mic. You only need the right plug and jumper cables.

At this point you really need a second microphone. There might be cheap ones used, on Ebay, etc. An older webcam might include a mic. Etc.