Do I have ADD, ADHD, paranoia, or OCD?

Without seeing the patient or without seeing the medical case history of the patient, even a professionally qualified doctor may not be able to diagnose such cases. I think there is no harm, if you can fix up an appointment with a professionally qualified doctor and consult him threadbare about all your problems. He will be able to clear all your doubts after some medical examination of your physical health and mental health, if necessary.