Your history sounds as though you may have a levator injury. However, there is a big difference between an injury and an actual cut of the levator muscle. The lid droop you mention is called ptosis.
Sometimes the levator muscle is stretched or injured but not cut, and the levator is weak for 4-6 weeks after surgery, causing a temporary ptosis. This usually resolves in 4-6 weeks-hopefully this is your situation.
If the levator was cut or disinserted (pulled out) form the tarsal plate, then a surgical repair will be necessary.
Be sure to see your surgeon soon-he /she should be able to diagnose the problem.
From your description of your scars, you might consider a second opinion by an expert in eyelid surgery-a board certified plastic surgeon who specializes in eyelid surgery or an occuloplastic surgeon.
Levator repair is a very technically sophisticated procedure that requires an experienced skilled eyelid surgeon to successfully restore normal levator function. if you need a repair you need to see an expert, in my opinion.