Stomach kicks/muscle twitching. Low magnesium? (Sorry a little long)

So for a couple of months now I have started to experience kick-like sensations or just abdominal muscle spasms. I’ve found it’s not only in my stomach, but I’ll get the same sensation in my arm, leg, back, pretty much all over. But it’s the most prevalent in my stomach.

For a 19 year old girl, it’s pretty freaky to feel that kick-like feeling. I’ve never been pregnant but that’s the closest I can describe it to. It only lasts for a second and doesn’t come back, but the spasms can spazz for a good 5 seconds or so.

I’ve tried drinking a ton of more water but didn’t notice much of a difference, just having to pee constantly 😂 I told my doctor about it and he just didn’t acknowledge it.

I don’t believe I am pregnant, unless it’s one of those freak stories where I have no stomach, no positive tests or ultrasounds but I don’t really think that’s it. I used to have pull out sex on the combination pill and the last time that happened was in May. This started in July. I have the Nexplanon implant and before it was injected, and a month after, I had so many negative tests and two ultrasounds that showed nothing in my uterus (was actually told my uterus is quite small).

I think believing I may be pregnant may have brought it on, or the stress from it, or just anything else because I have had a history of gastrointestinal issues.

Has anyone struggled with this too? I can’t see the movement outside of my stomach but I can barely feel it with my hand if I press into my abdomen.