My only problems have been related to having surgery, not necessarily the sleeve itself. I have had pain in the left side, horribly. At week two, I was feeling better and overdid it planting flowers, resulting in major muscle pain and BURNING for 5 days! Other than the pain, I feel great. I love not longing for food as I did before.
Your dizziness could be pain meds, residual anesthesia etc. I do remember being light headed and weak for several days after surgery. I hope it gets better.
Stephanie