When an individual has a pinched nerve in the lower back, for example, symptoms of pain will usually radiate down the leg. A pinched nerve in the neck can cause pain to travel from the neck, through the shoulders, down the arms and into the hands. Muscle spasms in the back commonly coincide with pinched nerves and can cause weakness in the arms or legs. The two most common pinched nerves in the lower back are L5 (lumbar 5) and S1 (sacral 1).
Most pregnant women start to get the queasies when they're about 6 weeks along, but some can experience morning sickness (which unfortunately can occur morning, noon and night) earlier. It will most likely subside as you enter the second trimester.
While others can't yet detect your pregnancy, by 5 weeks pregnant you may start feeling pregnant. If you have given birth previously you might notice your abdomen looks slightly larger than usual. This is largely the result of bloating. The uterus doesn't rise out of the pelvis until roughly 14 weeks pregnant but many women start experiencing bloating during early pregnancy. You may find your belly looks more poofy at the end of the day than early in the morning. Some women mistake this early pregnancy sign as a premenstrual sign.