Hello dear, First of all, remove all myths & misconceptions from your mind about masturbation. In fact, Masturbation is completely normal & doesn t have any bad effect to the body and mind. The symptoms as mentioned in your post can be attributed to: 1. Nerve compression due to incorrect posture. 2. Peripheral neuropathy. 3. Musculo-skeletal injury. 4. Any fluctuation in blood pressure & blood sugar levels 5. Inadequate hydration & nutrition status. 6. Deficiency of certain nutrients like Iron, Vitamin B 12, Calcium, Magnesium, etc. Investigations like complete blood count, estimation of blood pressure and blood sugar levels & X ray of the wrist joints will be helpful in clinching the diagnosis. Symptomatic relief from pain can be obtained with application of analgesic+ muscle relaxant gel. Nervigenic agents (like Vit B6, B12, Folic acid) as well as multivitamin & mineral supplementation needs to be added in the diet. There is no need to worry, you will be fine. Meanwhile, maintain adequate hydration, take a healthy balanced diet & avoid stress. Wishing a good health. Take care.