It may surprise you to learn that most non-ophthalmologist eyelid surgeons have very uneven skill in repairing eyelid ptosis. Some might even argue that this is an overly generous characterization. However, upper eyelid surgery often needs revision and heaviness after ptosis surgery is the principle reason for this even the hands of the best ptosis surgeons. However, double vision following this type of eyelid surgery is a whole other kettle of fish. This is much more concerning. It is a most untypical issue.
Depending on the exact cause of the issue, it might resolve on its own or it might require surgical intervention. An ophthalmologist can measure double vision very precisely. By repeating these measurements, it is possible to determine if there is sufficient improvement to venture a guess that it might resolve on its own without intervention. Please do not just go to any ophthalmologist for this assessment. You should be seen by an expert whose area is oculoplastic surgery. You live in Upland and it is possible you could find an appropriate expert at Loma Linda however, I would encourage you to seek out help at USC or UCLA. I am on Staff at UCLA so I am admittedly biased but if I was having this type of issue, I would seek help at the Jules Stein Eye Institute.