I am afraid i have multiple sclerosis.

I used to wake up with heart palpitation in morning .. while lifting heavy in gym i felt sharp pain in lumbar area... Soon after that later at night around 2am i woke up with heart palpitation.. cold.. shivering and sweating.. next day i went to spine surgeon.. after getting my mri i was diagnosed with annular tear in l4-l5 and was recommended physiotherapy... But after that night event every day i feel headache and have multiple body ache.. with all of a sudden fear.. sweating neck pain shoulder pain and feeling of falling and jerkiness... One fine day i searched internet with my symptoms and i found about multiple sclerosis... Since then i am afraid i have one and now i cant feel normal.. what should i do ?