Are my muscle fasciculations pointing towards ALS?

Hello doctor,

I have some symptoms that worry me a lot. I have been having muscle fasciculations all over my body (hands, arms, feet, legs, chest wall, glutes, knees, and cheek), every day, multiple times, for about half a year. Recently, (for about two weeks) they have worsened and I twitch almost constantly every day. I have noticed that the twitches are not present when I am physically active (for example, when I go for a walk or when I do moderate exercise). But the moment I sit or lay down, they appear again. I have also noticed slight occasional pain in my arms, hands, sometimes legs and feet as well. I have had a few cramps in my feet. My hands also feel slightly weak and tired. I have not noticed, however, signs of atrophy or actual weakness (I am able to do everyday tasks with my hands, etc). I also do not have difficulty breathing or speaking. I have had a blood test done and I do not lack any minerals. Levels of my thyroid hormones are normal. I do not drink coffee and I do not smoke. I get enough hours of sleep every day and I also would not say that I am under an extreme amount of stress. I went to see a neurologist a week and a half ago who performed a quick test to examine my reflexes and strength, stated they were normal and said I probably have BFS (benign fasciculation syndrome). However, I am still worried that I might have motor neuron disease. The fasciculations are extremely annoying and I have no idea what might be causing (and worsening) them and I am also worried because of the newly acquired pain, cramping, and feeling of tiredness in my hands. Not a single day passes by without my muscles twitching. I am female, 21 years old. I do not have a family history of neuromuscular disease. I would like to know whether my symptoms are indicative of ALS (amyotrophic lateral sclerosis). Is it possible to get some tests or examinations that would exclude ALS? I would really like to find out the reason behind my fasciculations as they have started to interfere greatly with my peace of mind.