Hi Katy,
Been there, done that...admire you!
Any and all of the rheumatic diseases hate to get cold. When we sleep, our metabolism slows...our body temperature drops...
And of course, warm muscles move easier...so,
Sleep on an electric mattress warmer pad...put it beneath your topper pad...the order is: mattress, electric pad, Homedics memory foam mattress pad, lofty bamboo mattress pad, sheet (Malden Mills Polar Fleece is so soft and warm)
I keep mine on year round...#1-2 in the summer, maybe 4 in fall, and 6 in winter. In fact I turn it on in the morning and again in the evening. It is on a ten hour timer. The reason I keep it on is that it takes time to thoroughly warm the whole bed. No more sliding poor legs in between cold sheets...less morning stiffness...so much easier to get up in the morning.
I use the polar fleece sheets year round.. soft on our skin that is so sensitive. always cold water, never fabric softener, always dry on knit cycle.
Sitting...consider a large blow up ball.. filled just enough to get your bottom off of the hard seats...and you must have a back rest with lumbar support. Take breaks were you can truly fully stretch.. slowly.
Consider wearing compression stockings..remember, you will be waking up warm...
Protect your pelvis and back by keeping them warm...when studying, use a heating pad...avoid going out on cold nights...
Get rest, not to be confused with sleep. All rheumatic diseases need lots of rest...and take breaks to stretch...
You mentioned a painkiller...how is the AS being treated?
I have lived with this damnable disease since I was 11...I just turned 65...the road today is so much easier because of DMARDS and biologics....
Katy, you go girl!
I am available to share my experiences...
hugs
,
judith