<s>[INST] Hello, I had sinus cancer stage four in-op, two years ago. It was throughout the left side of my nasal cavity. I now have have several side effect issues related from the chemo and radiation. They delivered high doses of both chemo and 35 rounds radiation. My side effects include but not limited to, dizziness extreme pressure in my head hearing loss. I have extreme pressure in head behind my left eye. I cant smell or taste which that is no big deal. My last MRI consultation, revealed a golf ball size spot located in my short term memory portion in the upper left side of my brain. It also is effecting some nerve endings. But the reason why i am writing to you is because in the last month or so i have something going on, here is the best that i can explain it. A weird feeling starts in my stomach shoots down to feet back to brain, then i have shortness of breath heavy breathing with extreme pressure in my head my heart starts to beat pound i feel faint. It last four about two minutes. These episodes started every once in awhile, now five times a day. Some are are very bad some are lighter. [/INST] Hello and Welcome to ‘Ask A Doctor’ service. I have reviewed your query and here is my advice. I would explain that your symptoms could be related to focal epilepsy seizures. For this reason, it is important consulting with your neurologist and performing an EEG. You should discuss with your doctor on the above issues. Hope to have been helpful! I remain at your disposal for any further questions, whenever you need! Kind regards, Dr. Iliri </s>