Suggest Treatment For Gastritis Due To Medication

Hi, I am a Chinese female, aged 71, around 53 kg. In April last year, I had an angioplasty where 3 stents were inserted into the main artery of my heart which was 95% blocked. After the procedure I was prescribed the following medication : 1. Plavix (clopidogrel) 2. Aspirin 3. Lipitor (Atorvastatin) 3. Norvasc (Amlodipine) 4. Controloc (pantoprazole sodium) The pantoprazole was prescribed because those medications were causing me gastric discomfort, but even then I was just taking aspirin on an occasional basis; i.e I would take for 1 tablet every 4 or 5 days. About 10 days ago I took aspirin for 5 days in a row and each day my gastric discomfort got progressively worse. I stopped on the sixth day and after stopping for 2 days I was back to my normal self except for the fact that after every meal my arms and legs would feel very weak and I would feel tired and need to sit or lie down. Sometimes I feel that my hands and legs are feeling cold. Any advice would be very much appreciated. Thank You. Regards Lucy