Hi welcome to Health care magic forum.
Thanks for choosing H.C.M.F.
You are waking up with bad pain and pressure in upper abdomen since 2 months.Lower back pain
and air hunger.
It appears that you have gastric hyperacidity
, or sleep apnoea , due to some silent heart problem, and back ache could be due to spondylosis
or gastric pain it self.
I advise you to consult a physician for diagnosis and treatment.You may have to go for gastroscopy, E.C.G. besides other routine tests for confermation.
Wishing for a quick recovery.