when you get the shivers and goosebumps when you run, does that mean that you are overheating? what do you do to stop this or prevent it? this has been happening to me in my last few runs and it is rather worrisome because shivers and chicken skin don't seem to be a natural reaction to running in the sun and heat, so something must be up.
any tips how to make your hands stop swelling up while you run? mine have been doing this and then i try and put them over my head to get the blood to move back to my body (this seems sensible when i do it, but not so sensible when i write it out!) and out of my upper extremities, but it doesn't last.