Hi welcome to Health care magic forum.
Thanks for choosing H.C.M.Forum.
You have got burning cramp like pain in abdomen. Pain worst when lying down. there is acid reflux
as well. You had period on 2nd, and had spotting on 26th. it is usual for you. you had cold
The spoting could be suggesting ovulation, cold is separate entity, with cold medicatio you will be fine.
The pain i suppose in the upper middle stomach. is suggestive of peptic ulcer
, or gastric irritation due to some irritant foods.
I advise you to consult a gastroenterologist
for diagnosis and treatment. You may have to get gastroscopy besides other routine tests for confirmation.
Wishing for a quick and comfirtable recovery.