I agree with Rohag.

What you are experiencing sounds much like what I have been going through.
My first step was to get a full physical and blood work done in order to see if what I was experiencing wasn't caused by something physical, (I was sure I was suffering from menopause...some hormone issue), though not the case. All came back perfectly normal. I'm in ideal physical health (other than smoking, of course).
As a result, I was diagnosed with depression and prescribed an antidepressant, (that was 4 weeks ago and I'm presently just trying to get past the side effects of the meds to know if it's helping, or not).
Because I was diagnosed with depression, it directed me into seeking therapy, (which I have just begun).

I strongly advise that you get a full physical and full blood count, including thyroid. And from there, with the assistance of your doctor, decide whether or not you need to seek a psychological screening.

I want to include, that I know how difficult it may be for you to even find the will to care for yourself like this. You may be thinking, "What's the point? It all seems so hopeless, anyway".
I used to think that way. And it took everything I had within side of me to take that very first step for a physical. Just making the call was an enormous task, (and I cancelled the appointment 3 times before I finally went).

One step at a time. Tiny steps. And with those tiny steps comes GREAT rewards. It all starts with a phone call.
You can PM me anytime if you need to talk. I'll be happy to help.

I wish you the best.....

Shangrala