I have a history of an eating disorder, and have been losing weight (even with steriods). My BMI is around 17. I also, have MG. Due to MG I have IVIG. They watch my blood pressure. For a while now it has been very high (191/114). I ve seen an internist twice. The blood pressure is always OK. This last time, I was told to start taking it at home. I sit, feet flat on the floor, arm resting at about heart level, and wait 5 minutes. The blood pressure was high, again. I repeated this 3 times in a row and then through out the day. Every time it is very high with the bottom number always above 100. Is this due to my losing weight, which I haven t been actively trying to lose?