Why do I feel stomach pain during exercise?

It's great that you went to the hospital and received treatment for typhoid, malaria, and a cold. Some of these diseases might be responsible for one to feel unwell. Headaches and vomiting can sometimes stick around even after treatment. Ensure drinking lots of water, plenty of rest, and healthy foods. If your symptoms don't get any better, go back to your doctor to get more advice. 

From the blood test results, it appears that there are inadequate levels of iron in your system. This can cause vertigo and trouble digesting food. I suggest you add such foods as spinach, lentils, or red meat which are rich in iron to your diet. Also if the physician orders it, you may consider taking an iron supplement that may help alleviate these symptoms.

Abdominal pain after eating may be caused by the swelling of your intestines, which is a common symptom of Crohn's disease. You may ask your doctor to let you try a different drug that might work better for your condition. The right medication that is most effective for you and is helping with your symptoms should be found out soon. Therefore, you should not forget to tell your doctor about the other treatment possibilities.

It looks like you’ve had a gallstone for a while now, and it has made your gallbladder stretch. Normally, gallstones bring pain, nausea, and yellowing of your skin. If you don’t have any symptoms, you might not need immediate treatment. You should have a nutritious diet and visit your doctor for regular check-ups.