It's possible that the wound from your radiotherapy treatment has not fully healed or that there may be other factors contributing to your symptoms. You should communicate openly with your doctor about your symptoms, concerns, and treatment history, as they will have the best understanding of your problems. 

You might have­ hemorrhoids. This condition causes itching and bulging around the anus are­a. Feeling pain when using the­ toilet is common. An MBBS doctor can help you with this issue. The­y will guide you on suitable treatme­nts. Different options exist, like­ medicines, lifestyle­ changes, or procedures. The­ treatment depe­nds on how severe your condition is. 

The alcohol likely irritate­d your stomach, which can occur when consuming a lot. Throwing up blood might indicate a blee­ding stomach ulcer. Look out for stomach pain, dizziness, and fee­ling faint. It's important to stay hydrated and avoid alcohol until you're fee­ling better. If it persists, se­ek medical attention right away.

You might have serious internal injuries. If you cough up any blood, have chest pain or trouble swallowing, or cannot see clearly, you should be concerned. Ingesting Harpic might have hurt your esophagus and stomach even more. Internal bleeding or other complications could be why these symptoms are occurring; therefore it is vital that you seek immediate medical attention.

If you’re feeling soreness in your anus and genital region following sexual release or peeing, it could mean that you have an urinary or reproductive system problem such as infection or inflammation. For the best results, see your doctor for a checkup. Meanwhile, take lots of water, avoid spices and try sitting in warm bath to relieve the pain. 

Consider testing for food intolerances or sensitivities might be helpful. While IBS doesn't cause structural damage like Inflammatory Bowel Disease (IBD), it can still lead to uncomfortable gastrointestinal symptoms.

It’s normal to get a tummy ache and not feel like eating when you’re on antimalarial medication. These medicines may sometimes bother your stomach. Remember to continue taking them, but try to ease the discomfort by consuming small and soft meals. Drinking fluids such as water or tea frequently could also be helpful. Should the symptoms persist, consult your doctor for further assistance. 

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.