am i dramatic

hi. 19f. no past issues of anything medically. very healthy and active. i have had anxiety my whole life but it has recently gotten severe with frequent panic attacks. in the past week, i have gained a hand tremor slightly in both hands, more on my left. i then experienced numbness in my left leg, then the next day my right. i went to my dr and she took blood and everything came back normal, told me i had rlly bad anxiety and put me on 25mg sertraline. i have been on it for 3 days now. i know it has its side effects of nausea and loss of appetite which i have experienced. my legs are now constantly having muscle twitching when i am resting. when i am standing / walking, they are very tense and also feel sore as if i have done a lot of exercise, which i haven’t at all considering ive been trying to rest to go back to college. i almost feel like i haven’t to sit down pretty frequently and the muscle twitching comes almost immediately. is this rlly my heightened anxiety that i just need to get thru or is it something more serious. i even have slight twitching in my hands. she didn’t want to see me back until a month of my medication unless something seriously bad happens. am i crazy for worrying every night that im gonna wake up the next day and not be able to walk? idk why it feels like i could get to that point. i dont want to diagnose myself with some neurological disorder but could that be it? i also have lost 5 pounds and have had terrible nights of sleeping. please give advice.