Hi diver_waseem24:
Some idea for you regard to your questions:
1) Having a certified license card for scuba diving is a MUST, by verifying you had gone thru the proper training for scuba diving activity. Practically the course help you understand the philosophy & skills to go for SCUBA, good for yourself as safety concern in priority while a 'key' to access to the underwater world in worldwide with better recognized! Dive Cert is a MUST! Of course, you may go diving without certification, this is what we called “Discovery Dive” with a certified Instructor, up to the allowed depth of 12M only (This isn’t consider certified diver, just experienced diving!)! Every “Discovery Dive” MUST accompany by a Professional Diver, while certified diver can go with any certified buddy. Those are the different.
2) Epileptic seizure - occasionally referred to as a fit, is defined as a transient symptom of "abnormal excessive or synchronous neuronal activity in the brain". The outward effect can be as dramatic as a wild thrashing movement (tonic-clonic seizure) or as mild as a brief loss of awareness. It can manifest as an alteration in mental state, tonic or clonic movements, convulsions, and various other psychic symptoms (such as déjà vu or jamais vu). Sometimes it is not accompanied by convulsions but a full body "slump", where the person simply will lose control of their body and slump to the ground. Seizures may cause involuntary changes in body movement or function, sensation, awareness, or behavior. Seizures are often associated with a sudden and involuntary contraction of a group of muscles and loss of consciousness. However, a seizure can also be as subtle as a fleeting numbness of a part of the body, a brief or long term loss of memory, visual changes, sensing/discharging of an unpleasant odor, a strange epigastric sensation, or a sensation of fear and total state of confusion. A seizure can last from a few seconds to status epilepticus, a continuous group of seizures that is often life-threatening without immediate intervention. Therefore seizures are typically classified as motor, sensory, autonomic, emotional or cognitive. After the active portion of a seizure, there is typically a period referred to as postictal before a normal level of consciousness returns. Thus, NOT RECOMMENDED FOR SCUBA DIVING AS YOU WILL ENGAGE INTO A SUBMERGED WORLD WHICH ‘MEDICAL RESPONSE’ IS NOT POSSIBLE IF THE SIGN/SYMPTON OCCUR DURING DIVING!!!
Felt bad to hear your condition, but don’t give up! YOU MAY ENROLL WITH SURFACE SNORKELING ACTIVITY, WITH A GUIDE ALWAYS TO ENJOY THE WORLD BELOW THE SURFACE!