Is it possible to feel the effects of withdrawal 5-6 months later?

I (25M) got off antidepressants after years of taking them. They worked somewhat, but they gave me horrendous side effects, so I got off them completely in January. I usually do great for a month or two before I begin really suffering from withdrawal; however, this didn’t happen this time around.

Now, I’m really spiraling. I have a really bad history with these pills and I do not want to go on them. I cannot tell if my current state is influenced by withdrawal or if it’s because my current treatments (talk therapy, supplements, and acupuncture) are not working.