Hello, welcome to HCM. The symptoms you are having do resemble the symptoms usually people face on taking spiked drinks. The effect of any drug will depend on your body shape and size, your age, how much of the spiked drink you have consumed, and how much alcohol you have already drunk. If your symptoms are still severe you should visit your doctor to run some tests on you to find out the substance used and its level in your body. Usually people face drwsiness, confusion, difficulty in sleeping, amnesia
and visual problems. You should be ashamed of visiting a hospital as its a matter of your health and you should be concerned about it. Wish you good health.