Hi Wendy,
Glad to know you are feeling a little bit better.  I was wondering about the burning?  When I get that it is usually a sign of  thrush.  It makes your mouth burn. It is something we all get due to the dry mouth.  You might want to talk to your Dr. about it.
I use the shower to help with the Neck being stiff. I would stretch and turn my neck to help loosen it up.  I still do this to this day.
Yes, it is hard to find the work arounds we all need.  Yes, the new normal is work.  I think we all have days when our side effects get to us.  Some days are better than others, just tackle one problem at a time.
Hope some of this will help.  
Take care, 
Diane