Welcome to healthcare Magic!
Your symptoms are quite alarming and indicate some cause in the brain.
It can be due to a cerebrovascular accident, a seizure
or due to some other rarer pathology like arteriovenous malformation
, tumor, abscess
it needs costly investigations but cheapest way to handle this is to consult a local neurologist
and get a neurological physical examination.
I hope the advise would be informative and useful for you.