German 2, I cannot give you reassurance since I am not a doctor, and even if I were, it is not possible to make a medical diagnosis via internet. Yet, I’m going to give you my own opinion and experience regarding atrophy. It’s true that ALS is a muscle atrophy disease as you can notice from its name (Amyotrophic=muscle atrophy), nevertheless I think the concept of atrophy can be misleading because unless a thorough clinical exam is done by a true specialist it’s not easy to pick up atrophy in the beginning. And if atrophy is so pronounced that it is clearly seen by a blind man from a distance of one mile, then huge muscle weakness must be present. You cannot loose muscles to the point where it makes holes, or make a hand or a leg looks much thinner than the other one, without noticing any weakness. I’ve seen neuros, I know people who have seen neuros, and I’ve read on this forum about many people who have seen neuros. Rarely the neuro checks for atrophy in the absence of weakness, and most of the time he checks for weakness only. My neuro did not ask me to remove all my clothes so he could check every muscle for atrophy. He looked for weakness, he checked my reflexes and that’s it. The reason is that a little body asymmetry is normal, while huge and obvious atrophy would come with a lot of weakness. Sometimes it’s like people truly believe that they can have their whole leg atrophied to the size of a straw and still run a marathon. That’s ridiculous.I had true leg atrophy 8 years ago, after some complications due to an ACL surgery. Well, I couldn’t climb a stair (it was impossible) and while lying in bed I couldn’t lift my leg, not even an inch. That’s the result of a true atrophy. After the onset of my twitching, I witnessed many holes in my hands, arms, legs, thumbs, thigh, quadriceps etc. In the beginning each time I used to freak out and though my end was near. But then, time was going on, months were passing and still not a single sign of weakness… In a couple of months when you will see that your strength is still the same you will accept the fact that your muscles are not dying or becoming atrophied due to a super rare neurological disease.There is a quote from a doctor somewhere on this forum saying that proportionally weakness is much more present than atrophy, so a little atrophy is usually accompanied by huge symptoms of weakness.Use the search option and check how many people here panicked over what they thought was some hand atrophy, though after some time nothing sinister happened.