The people here are fabulous!
Most likely you are weak and dizzy because you just had surgery. But in the next few weeks, watch your salt intake. It was the only real problem I had right after surgery, I was getting very dizzy and weak....it was a lack of sodium and potassium. And still, if I don't get enough salt, my body doesn't retain my potassium and I get dizzy and weak. Even almost 3 years out. I saw that you are sipping broth, Good! Maybe you could talk to your NUT or dr. about the salt content of the broth. After I switched to using salted boullion with my chicken broth, I stopped being dizzy. Just sayin'.....
Of course, consult your dr. first!
Angela