Neurological Disorders Forum - Jumping Legs And Pain

For about four months my left leg was jumping; not a tremor, kind of like a jerking/involuntary movement. I was unable to control this movement. Toes do not draw up and my feet were not effected. Sometimes the jumping would last all day and some days it would not do it a all. Sometimes it would only jump once or twice a day. When my leg was not jumping, it is very painful. My right leg has never jumped.
Now the jumping appears to be gone, but the pain is almost unbearable. Sometimes I can hardly walk. In the morning to pain is like a dull pain, but as the day wears on its get worse. It is not a muscle pain, the best way to describe it is like a bone pain (deep in my legs)from my thighs to almost my feet.
I have had a brain MRI, c-spine MRI, lumbar MRI, and sleep deprived EEG--all are normal. Blood work is all OK. Lyme test was negative. But I still don't have a diagnosis.
I am taking no medications. I am a nurse so I am on my feet all day, usually work about 10+ hours a day x four days a week. No regular exercise routine, but in fairly good shape. I am a male, 41 years old, 5' 5" and weigh 134 lbs.
In 2005, I had to have a colon resection due to diverticulitis, while in the hospital I had problems with my potassium being low at times and had to have IV potassium 2 or 3 times. But since then I am unaware of it being low again.
No smoking, no alcohol. Mom has diabetes and sister had gestational diabetes x 2 births, and currently has hypothyroidism, being treated with Thyrolar.
MS, Parkinson's, Wilson's disease, Huntington's have all been ruled out. ALS was brought up?
RLS was discussed but because when my leg jumps/jerks it does so about a foot off the ground. For example, I will be sitting in a chair, with legs bent, and my leg will hit the underside of a table.
My question about RLS, does it only happen at night? When this all started it was a constant jumping day and night, the doctor prescribed Flexeril until I could get into another doctor. Flexeril did help the jumping but the tugging sensation was still there as if it wants or is trying to jump, but can't.
There seem to be no other symptoms, just pain in both legs now.
Thanks in advance for any help you can give me.
Have a great day!