Weeks ago i started having tingling under my left foot. a week later it was also under my right foot. a week after that it has spread up to my thighs. no other symptoms but i am having severe anxiety worrying if i have ms. waiting for mri?

Neurologic symptoms : Sensory nerve sensations such as "tingling" in lower extremities are more likely to be circulatory in origin. MS is essentially a motor nerve (muscular) disease. See an internist or neurologist for an exam and testing if your MRI is negative for MS.

Doubt MS: If your sole symptoms are as described, it is highly unlikely you have MS. However, your doctors should consider possible peripheral neuropathy, and there are numerous causes. MRI of lumbosacral spine might be helpful if there is lumbar stenosis or cauda equina concern. An experienced neurologist could assist. Consider Concierge visit with one of the HT physicians