I am a 36 yo female who is 6 weeks pregnant.  I have been having muscle fasiculations in arms and legs for about 2 months off and on. (more regular now). They happen when my muscles are at rest.  Also get tremors in hands after exertion or holding heavy cup, cell phone etc.    Worried I have ALS.  Going to neurologist in two days but totally panicked
ALS can happen to anyone, but it is only one disease in a larger family of diseases called motor neuron diseases.  Rhat being said the whole family of disease is rare and articulations are often misdiagnosed and even when correctly diagnosed are only a symptom of a peripheral nerve injury which has many forms and locations.  There is no way online whether you have ALS, but your neurologist will sort it out