Hi, I took one Kamagra tablet (SILDENAFIL CITRATE) 36 hours ago, and even though facial flushing, dizziness and sickness has largely dissapeared, I still have a slight 'numbness' feeling around my face/ears, and a slight headache still. I went to see a doctor at my local hospital last night, who took my full medical history, and he said I should be fine, as blood pressure and temperature was ok. He said that the drug can stay in my body for a few days. Just for extra piece of mind, will the slight numb feeling subside soon? I guess it is because of the stress of the recent increased blood flow. I am 30 years old, and on no nitrate medication no medical problems past. Regards, Mark