just before christmas i saw a different gp about the pain i was having and not being able to walk.i was litterally hauling myself round the furniture. i asked him about the amitripyline and how i had put on weight.i had been swimming twice a week and doing low impact zumba until the flare up. he has now upped the amitriptyline to 50mg and i feel the weight is increasing . has anyone else experienced this and what can i take instead. .i want to take as much info with me as possible when i go back. i feel bloated all the time suggestions please.x.