Avoid chillies, spicy food and garam masala. Drink cold milk and milk products. You can take tablet Pantokind DSR half an hour before lunch. You can take tablet Dygene two tablets to be taken one hour after food. You can take tablet Cefran OZ one tablet twice daily for seven to ten days. Drink a glass of cold milk at bedtime

I think you need to get yourself physical examined by doctor and if required then blood testing and imaging. Self medication can be harmful sometimes. 

You need consultation and proper medications. Evaluation also needed. Consult a general physician. Can consult me on practo

Mouth ulcers and bleeding proctitis and iron deficiency anemia all directed to IBD …

Its always better to get treated before an impact happens. As you have all these symptoms it better to consult a physician. Need to investigate.