Is it normal to have dizziness, nausea, vomiting, feeling faint, hours after, and during EEG? Should I be concerned? Didn't know it would make me sick

EEG lead glue. Some types of glue used in some EEG labs to make the electrodes stick to your scalp can have very irritating odors or chemicals. For some, it may just smell bad; for others, it may irritate the upper airways; and some others may get stomach and/or headache. It should pass within a few hours. Feel better!