the symptoms you are experiencing seems to be alarming for every one however they are not that much complicated serious symptoms. you don't have to worry that you will develop stroke
. there is nothing like that. All these symptoms you are having are suggestive of psychological condition mainly depressive illness also causes anxietly and obsession. you might experience certain other symptoms like palpitations, sleepliness, bodyaches mainly at neck and shoulders,loss of appetite and irritation.
i will recommend you to consult a psychologist
for proper evaluation