I have to agree.
As long as it’s not caused by a physical factor, like medication.
I react like that to Zyrtec. I was very depressed for about a month one time. Couldn’t figure out why, when it occurred to me that it might be the medicine.
I went off it and was feeling a lot better in a couple days. In two weeks, I was a new person.
I’ll die before I take any mind altering drugs.