Alt...are you on clonidine patches by any chance? I know that I found out when the weather warmed up that I need to be careful in the heat because the patches will start to cause dizziness, nausea, etc. Apparently in the heat, they will release more medication and then it's sort of like ODing in the meds. So instead of controlling those symptoms it makes everything go wonky. Just a thought since we've had a lot of really HOT days around here (not sure about where you are).