I have been having problems with my sugar levels rising slightly after eating. They were not consistent so my doctor could not give me treatment. After maybe an hour after eating i start sweating and become lightheaded. This was fine but now the sweating is really bad and my t-shirt was actually wet the other day. It only seems to happen when eating so im wondering if this could be diabetes? I have Pancreatic Insufficiency and i receive B12 injections.