Suggest Treatment For Restless Leg Syndrome Causing Fever And Nausea

I have episodes where I feel very jittery like my whole body has restless leg syndrome. When these episodes happen I have increased urination and motility, fever, nausea, profuse sweating, and agitation. This can last a day or a week. Nothing makes it better or worse. When it finally goes away I m left feeling completely exhausted and drained. Every time I have brought this up to a doctor I ve been told that it s panic attacks but I know better. I ve had panic attacks before and this is SO different. It does make the panic attacks worse but this is a very physical feeling. I ve had my TSH checked and it came back normal. I had a normal EKG as well. I have no clue what it could be and I don t know what to ask my doctor to check for.