Do you suffer from anxiety? This could be an anxiety issue, but if you're concerned about it go to the doctor and ask for a thorough exam. I am suffering some things I am concerned about as well and feel your pain :(
Yes, you should be concerned. You should get your symptoms thoroughly explored by your physician & be like a woodpecker to try to get a soon appointment- get put on the cancellation list, check in regularly to see if any openings have come up. You may even consider the ER if you feel symptoms are severe enough to get the ball rolling.
I'd suggest getting your orthostatic blood pressures taken. You should get a brain scan as well. And be sure and get your iron and ferritin checked, as iron deficiency can cause light-headedness, headaches & difficulty in concentration. Don't settle for just a CBC on the iron deficiency angle because I've had symptoms with low iron and had a normal CBC. Also, regarding leg cramp- get your potassium checked to see if it's low and make sure there isn't a specific area that feels warmer than the area around it (don't massage to find this out) in case you might have a blood clot in your leg.
The Content on this Site is presented in a summary fashion, and is intended to be used for educational and entertainment purposes only. It is not intended to be and should not be interpreted as medical advice or a diagnosis of any health or fitness problem, condition or disease; or a recommendation for a specific test, doctor, care provider, procedure, treatment plan, product, or course of action. Med Help International, Inc. is not a medical or healthcare provider and your use of this Site does not create a doctor / patient relationship. We disclaim all responsibility for the professional qualifications and licensing of, and services provided by, any physician or other health providers posting on or otherwise referred to on this Site and/or any Third Party Site. Never disregard the medical advice of your physician or health professional, or delay in seeking such advice, because of something you read on this Site. We offer this Site AS IS and without any warranties. By using this Site you agree to the following Terms and Conditions. If you think you may have a medical emergency, call your physician or 911 immediately.