Sorry to hear about the thyroid issues. That sounds really frustrating. My thyroid hasn't been removed but is completely atrophied and useless. I do get some side effects from the replacement hormone, but thankfully, they are limited to cosmetically annoying issues (ironically, I have more hair fall out when my TSH is normal and I am taking my thyroid meds than when I haven't and my hormone levels are life threatening low). Is it at all possible that the symptoms you experienced weren't from the replacement hormone but an effect of your thyroid being removed? I get the impression you weren't on thyroid hormones before since it sounds like the meds are recent. Thyroid hormones themselves do affect mood, and having your thyroid removed could 100% affect your mood until your levels are stabilized. My psychiatrist always wants to know about thyroid levels whenever depression is reported. Unfortunately, doctors also have fixed ideas about what constitutes a normal TSH level and that may or may not be near what a person's TSH looked like before they developed thyroid issues. That means you could be prescribed a lower dosage than the one that would have you feeling normal. Just an idea.

As for therapy, I think it's ok to use it as a place just to get support and a kind ear, if that's what you need right now.