The problem you mentioned are not so specifically related to any medical conditions. First of all, dont panic. Your problem can be cured.
1. Make sure your digestion is proper and complete.
2. If you have habit of masturbation, don't do it a lot.
3. Take cumin seed water.
4. Good night sleep.
You mentioned that you have already consulted a doctor, also a neurologist. So probably it is not a neuro complaint. A good M.D physician on face to face consultation can help you out better, because needs examination.
Next Steps
Follow the acvice given for 5 days, if the symptom persist consult a M.D physician. Because physical examination is needed in your case, before advicing any medicines.