Anything is possible, just like it's possible that both you and I get struck by lightning today. I'm not sure what your story is but it sounds like if you got an EMG of both your limbs and bulbar region, then you have been fully and thoroughly evaluated. I'm going to assume that the conclusion from that evaluation is that you don't have ALS. If you'd like, you can share your story with me and I can give you my opinion . . . which by the way . . . I'm 100% sure will concur with your neuro.