had both of my feet crash, sounded like breaking glass, couldn;t stand on them for several days, went to never doctor everything ok, went to podiatrist he said never heard of anything like that , took mri and said nothing wrong must have been a tear in your fishatous tendon on both feet , and nothing can be done , afraid to walk in fear that it will happen again, its been a year and i now can only walk a short distance before i feel like i have to lift up my legs to help me go further, i am at ends wit, cause every doctor tells me the same thing loose weight and it will solve everything, i am 65 5'3 and weigh 236 yes i am heavy , but why can;t they tell me what is wrong. i am tired all the time and can;t sleep help