I have the same issues as well.I have seen three neurologists.I have trouble walking,loss of strength in whole body and face.Slow talking,swallowing,chewing.I also have muscle twitching all throughout my body.The neurologists are saying no,but I think ALS is really hard to diagnose.I was tested for Myasthenia Gravis which is similar to ALS,but there is treatment for MG.My test came back negative,but a specific antibody for that test came back borderline.I am just wondering if it just part of long covid.I saw that long covid clinics are now using mestinon which is uses to treat Myasthenia Gravis.It gets the muscles and nerve signals working properly and it also helps the vagus nerve to function properly.Covid attacks the vagus nerve which controls so much in the body.Doctors don't know much about the vagus nerve at all.