For the discomfort that you are having in the abdomen, you must consult a doctor and get a detailed examination done, including ultrasound
scan and if indicated gastro-duodenoscopy to diagnose the cause of your abdominal discomfort. Once the cause is established correct treatment can be instituted.
Twitching in the abdominal muscle and eyes may be due to calcium deficiency
. If that is the case you will require calcium supplement
Wishing you all the best.