I am so glad I found this forum. But I am a bit embarrassed to ask a very senstive question. Maybe I should ask it generally as not to make anyone feel awkward. My boyfriend who is 41 is in the process of being diagnosed, ALS was one of the diseases they discussed with him. He has felt tired, muscle aches, weakness, twitches in his legs. He is being scheduled for an MRI, and a bunch of other tests to try to figure out what is wrong. I have done some reading about ALS, and have read some of the information here. Can anyone tell me if impotence is a symptom, or has any one heard that it is.