My ears started bothering me a few days ago. It is making standing up from sitting or lying down and adventure. Saturday at work, I became very light headed while standing and working. This began in earnest after I crouched and then stood, again. I also experienced weakness in my neck and shoulders with a touch of cold sweat and heart palpitations. No pain, at all. Additionally, I have been bleeding rectally for a few days. I had a colonoscopy last month that showed diverticulosis. That bleeding resolved, yesterday