started 10mg amitriptyline in march for the nerve pain part of my fibromyalgia, mostly the tender points that flare at night and keep me from sleeping. sleep did get better, i went from waking up 3-4 times a night to actually getting a full stretch most nights, which on its own helped my baseline pain drop maybe half a point. what nobody mentioned clearly is the weight gain.
i’m up about nine pounds since march and my eating hasn’t changed that i can tell, i still log meals out of habit from tracking everything else. my GP said it’s a known side effect, something about how it affects appetite and metabolism, but when i asked how common or how much to expect she didn’t really have a number for me. just “some people gain weight, some don’t.” so now i’m stuck weighing better sleep and slightly less pain against a body that feels less like mine every month.
i haven’t decided if i want to ask about switching yet because the sleep improvement is real and i’m scared to lose it chasing a different side effect profile with something else. has anyone actually had the weight gain level off after a certain point, or does it keep climbing the longer you’re on it? trying to figure out if this is a plateau i just haven’t hit yet or if i need to have the switching conversation sooner than i want to