I would like your opinion

Hello, my name is Zach and I'm 17 years old. And for the past couple of days I have been experiencing muscle spasms in both my legs and arms now. Every time I look up muscle spasms als keeps popping up and I'm truly terrified. I know the chances are extremely low for people my age but there is still a chance and that idea terrified me. I have been concerned and I'm not very athletic I don't get outside in the sun much and I don't eat that healthy. All of my friends I have asked haven't had spasms that last this long. For me my spasms happen mostly when I sit down or lay down and it's kind of hard to sleep when my muscles are having tiny spasms. I would like to know anyone's opinion. And would like to know if you think I have als. Please let me know. And thank you for your time