Am i going blind whats the problem?

here for the past few weeks i ave noticed my vision has gottin glittery and grainy i have ben to 2 different eye doctors and my eyes check out fine the only thing one doctor noticed my optic nerves are latger than normal what is this problen i am having i have also have had a headache for 4 das and it wont go away i have a doctors oppointmont at the free clinic in 2 weeks cuz i cant afford o doctor can i wait that long and can this problem be reversed??