Hi Steph: Welcome, if I missed your previous posts. This is a great, helpful forum.
If you scroll down the list of threads on this forum, the sixth last one (as of now) by AubreyB called "Natural Alternatives" might be helpful.
I would say I can often get by with alternative treatments; however, winter is coming fast and though it isn't that cold yet (still nice here in the upper U.S. Midwest, actually), I'm already seeing some not so pleasant changes. Today I had slight nerve pain in my head all day. Nothing major; just a reminder that I have fibro! I've also noticed my feet are a little more touchy.
Back to your question: Heat is quite helpful, too, and in the cool months, I never am far from a heating pad or microwavable 'bed buddy.' A nice blanket to cuddle up in when evening arrives feels good, as does a warm foot bath. A cup of chamomile tea is relaxing to the muscles, too (try the various Celestial Seasonings flavors---very good!).
Okay--the above suggestions are fine if you have time in the evening for some down time, but during the day, I try hard to alternate sitting with standing. I change positions often. That definitely helps my stiffness. I'm even stiff as I type this, so will have to move along soon!
I was on Elavil for years, due to chronic diarrhea, many years ago. Yes---I gained weight! It made me incredible sleepy! I would take a 50mg tablet before bedtime and be very sleepy all the next day. It did help my condition, but wow, I was so, so tired back then.
I don't know much about what to do about weight gain and meds, unless your doctor will let you take less, if you're able.
For example, my doctor used to give me 300mg of Neurontin (gabapentin) but now prescribes the 100mg capsules. I like that--much less 'fog' and sleepiness, and I can work well through them.
My diet has improved---more vegetables and fruits, more water, and very, very little as far as cookies, chips, etc. Just a taste, if anything.
Hobbies have helped me, too, as does prayer time and spiritual reading. They put me in a better frame of mind and are so inspiring to me.
I don't know if this helps, and hopefully others here will post with ideas, too. Take care, and I hope things go better for you soon! Keep us posted.
"Someone who goes through life with an open heart always finds something to be thankful for."