Cramps :: Overuse Of Muscles

They started a week ago, two days after a very strenuous run and arm workout. I don't run a lot and the exercise really wore me out and my quads were sore for a couple days. Then I started getting cramps in my left forearm and left anterior calf muscle (above the ankle). They come multiple times in the day simultaneously for about 5-10 seconds then fade away together as well. I've tried every home remedy(massaging, hot bath, stretches) and none have affected the frequency or intensity of the cramps.

I visited a primary care doctor who drew blood to check my electrolyte levels and gave my head a ct scan, both came back normal and they wrote me a script for Flexeril which helps me sleep but does not relieve the cramping.

The next day I visited a neurologist who gave me an EEG to confirm I was not experiencing partial seizures. He then put me through some basic strength tests and confirmed I wasn't experiencing strength loss in my affected limbs and said he didn't think He referred me to another neurologist who specializes in muscles to "make myself feel better" who I'm seeing Friday.

I've been able to rule out some scarier stuff with the CT scan and the fact that I haven't been feeling any weakness (other than soreness), or other symptoms other than the cramps themselves. Maybe it's a slipped disc? That's the only thing I've read that makes sense. This seems like too long a period for something as simple as an overworked muscle

Long story short, all the doctors I've seen haven't found anything other than overuse of muscles and long cramping. I'm hoping anyone who has experienced something similar or knows someone who has can provide any advice or insight into what's going on. Thanks!