Myoclonic jerks. These myoclonic jerks?

My sister started venlafaxine 37.5 Mg for her vestibular migraine and got myoclonic jerks . She stopped the medicine just after one pill but she still Can’t sleep the whole night with the jerks , We did an EEG and it's normal , She is getting a wierd feeling in the brain like a zap , then her body parts jerk , then her heart races and She goes to urinate !! Doc tried a few medicines like benzos & anti seizure on her but Shez sensitive to medication and nothing is helping !! She stays up whole night with no sleep. Doc says She should see a physiatrist but the problem is no medicines are agreeing with her body she can’t stop crying coz She knows even meds from the physiatrist will make her worse !! Can someone recommend what can she do to help her get rid of these myoclonic jerks ? Thank u !