This might be due to cartilage problem. Please get an MRI done !

The redness, bleeding, and pus are signs that your wounds might be infected. It's important to keep the wounds clean and dry. Use Betadine for dressing, as it helps prevent infection. Avoid putting too much pressure on your leg wounds to reduce bleeding. Your wounds will heal with time. 

Unlike lumps that result from injury, there are cancerous lumps that will go away without treatment. If the tumor is not sore and only hurts when pressed, it could be a benign growth. However, you should seek medical attention for this.

This condition can be tried with acupuncture, as per acupuncture theory acupuncture needles balances the imbalanced meridian thereby giving relief in majority of the symptoms. 
Acupuncture, Acupressure, Seed therapy, electro magnet therapy, colour therapy gives miraculous results.

For severe pain in your left arm, it's essential to seek medical attention promptly. Pain in the left arm can be caused by muscle strain, injury, nerve compression, or even heart related issues. Consult a doctor for proper evaluation.

You seem to have back pain and trouble bending. It could result from any number of factors, such as a muscle strain or back trauma. To correctly be diagnosed and treated for your condition, I would suggest that you visit an orthopedic physician.