I would go see your doctor.
If you feel like something is crawling on you
Parasitosis (illusory or delusional)
it feels like something is crawling in my back and my head why?
They are like that because your heart is beating...
Sclerosed vein feel like a cord and you can feel the same along the tract, subcutaneously.
s it normal to beable to feel like cold blood running through my veins?
sclerosed
do you feel something like a hard cord
Veins do not have nerves that detect pain, so they do not typically feel pain. However, if the vein becomes inflamed or there is damage to the surrounding tissues, it can cause pain or discomfort. Conditions like thrombophlebitis or deep vein thrombosis can cause pain in the affected veins.
They feel like something is stuck through your ear ;)
There just might be something crawling in your hair if you meant hair. Lice can crawl on the hair and be on the scalp to make you feel like scratching the head. See a doctor to confirm if lice is the problem or something else.
maybe cause your hair i lifting off the surface of your skin causing it to allow air