Nerve damage or Poor circulation.

Since 4 years, m facing on off cold feet plus tingling like sensations on feet , palms of hands sometimes near spine.., brain zaps, left side of numbness of body with high palettes count ....BP higher side fluctuating n high heart rate... Rest, I don't have diabetes, kidney,  liver, thyroid normal . n feet nerve also puts pressure on my bladder then I also got vaginal pressure n bladder pressure... N laying down on bed cause abnormal heart rate... N dehydration issues ...you can say multiple symptoms.. Initially 6 years ago, I always got itching on all over body with n.. I was so happy :(  no sadness or depression... Once tried steroid therapy once which totally vanishes my symptoms but can't take it for so long as it has its own side effects... Symptoms are on off comes automatically then stay for long time.. General doc said.. Go to neurologist but should I go to nerve doc, heart specialist or urologist ?