Neurology
Ask a Neurologist and Get an Answer ASAP
How old are you? Gender? Do you have any other medical conditions. What symptoms have you been experiencing and for how long?
Firstly, I understand how scary these symptoms can be, however there are many benign conditions that could explain these including electrolyte imbalances, low iron, low folate, could also be stress induced. None the less, it is important to exclude more concerning causes particularly, like you mentioned, MS. The most appropriate thing for you to do would be to ask your GP to organise a full set of blood tests so some of the common and easily reversible causes are screened for, and to book a face to face appointment so he can perform a full body neurological examination, he can then consider booking imaging investigations or referring you to the neurology team for further assessment.
There are a number of blood tests including iron/folate/vitamin b12 that may not have been tested the first time. The symptoms you describe are vague and not necessarily only present in MS and ALS e.g. in MS other symptoms such as blurred vision/bladder dysfunction, balance issues may be present. Like I mentioned your symptoms could relate to multiple benign causes or even just stress and anxiety alone. Please do not worry about these and if you raise your concerns with the GP they will be looked at accordingly.