In mechanics, a force is that which causes a change in velocity or, if you prefer, that which causes an acceleration. When more than one force acts on an object it is the net force that is important. Since force is a vector quantity, use geometry instead of arithmetic when combining forces.
Quick Answer. A crawling sensation felt on the skin may be caused by a condition called morgellons, according to WebMD. Common symptoms of morgellons include feeling like bugs are crawling on the skin, burning, itching and stinging sensations. In some cases skin sores may appear as well.
Can burning sensations really come from anxiety? I started to experience skin burning sensations, as well as a host of other symptoms, about three months ago. I'm currently being evaluated for small-fiber neuropathy--which is a possible cause--with a barrage of tests that are still a month away. However, many of my other neurological symptoms now seem to have had other causes, including a severe case of TMJ. I'm wondering about the burning, now, too.