I am now trying to wean off tramadol.. been on 6yrs. When I go about 12yrs w/o the med, this odd zing, tingle, high pitch sortof dizzylike feeling in the back of my head developes untill I take another dose. I am an RN but have seen only one similar of this side effect. I fear, it's r/t seratonin build up?? seizure aura?? Anyone help me out here?? Also, I've lots to share about tramadol and other side effect.. wanting/needing to talk about it. Thanks!