If it has just gone milky in the past few days, then it should shed within the next 2 weeks. I doubt whether it has been in "shed mode" for the past few months - I suspect you are just very inexperienced. If it clears up and sheds a few days later a vet trip will be totally unnecessary.
How do you know it's being in shed for a few months? Do you know roughly how long its eyes have being blue?
I would follow pythoninfinite's advice and give it a week or two to shed? If it still hasn't shed in two weeks then something is amiss and I would take it to the vet.
Ok sounds fairly normal then and you have just misread the shedding signs. As you gain more experience it becomes much easier to tell when they are getting ready to slough and when they aren't.