Had surgery on foot about 8 days ago for a avm foot is hurting throbbing burning pain on cut and bottom of foot also clear fluid is coming out of cut?

See your surgeon. It is possible that you have not been elevating the foot as i suspect you were instructed--this can cause throbbing pain. But because this could also be associated with a post-operative infection, you should see your surgeon immediately so he/she can accurately evaluate the situation.
Call Your Surgeon. A phone call to your surgeon should either reassure you that things are ok or result in your surgeon requesting to see you. It's difficult to answer this question having not performed your surgery.
See the surgeon who . I would see the surgeon who performed the surgery asap for an evaluation.