I feel an something lime absence in my head, a weakness, as if it is not my head. Than I am always sleepy, no concentracion. At first time, I went outside a little, not now. I also had nausea from time to time so I ate poorly. and then a couple of days I can. It's been a month since the operation and I've lost weight. does anyone have a similar experience. Now my ears are a little deaf, as if there is water in my ears.