Firstly thank you for a concise, clear history. I wish everyone could write like you!
Your doctor is following the right course. Any swelling around the collarbone needs to be examined carefully. The brachial plexus of nerves pass through the area, hence the tingling in your arm.
Take note of exactly which part of your arm and hand tingles. Try pricking with a needle, comparing right and left.
Note whether placing your hand on your head relieves or increases the tingling.
Ask your doctor to check Adson's test for the pulse in the arm. Both the nerves and the artery to the arm pass through the Inter Scalene Triangle
and it's important to know whether one or both are affected.
Carry your camera bag over the other shoulder. Don't carry heavy shopping bags with your left arm. If your neck cracks of itself don't be too concerned but don't pop it deliberately, it will only aggravate the problem. See the newsletter sent separately.
I'm not too concerned about your weight, your BMI is perfect, nor about your BP. The fluctuating heart rate is to do with your thyroid condition.
Your thyroid and parathyroid glands sit right there in that area too, so a consult with that specialist should be part of the examination.
I hope this has contributed something. Tired? Which mother, wife, housewife, busy job isn't? But perhaps your thyroid levels need to be checked. When did you last have two, or preferably three consecutive week's holiday?
Dr Barrie Lewis