Needing med advice

I’ve been taking 10mg of Nortriptyline at night for the last 6 months. I feel like it’s really helped give me a sense of normalcy. It took the edge off and really helped with my overall body pain. I’m in my first flare after starting the meds. I used amitriptyline in the past. The benefits only lasted for a few months but when I upped the dose to 25, it didn’t feel like it helped as much. I’m now considering upping my Nortriptyline. Has anyone had the same reaction with better results at lower doses? I’m kind of desperate. Should I go up or go off of it for a little bit and start again? It does also help with my mental health (I have OCD)