More persistent or severe symptoms may not appear for 10 years or more after HIV first enters the body in adults, or within 2 years in children born with HIV infection. This period of asymptomatic (without symptoms) infection varies greatly in each individual.
The muscle contractions you feel is muscle fasciculation or muscle twitch. Twitching is caused by minor muscle contractions in one particular area, or the persistent and uncontrolled twitching of a muscle group in a distribution of a single nerve fiber or filament.he muscle contractions you feel is muscle fasciculation or muscle twitch. Twitching is caused by minor muscle contractions in one particular area, or the persistent and uncontrolled twitching of a muscle group in a distribution of a single nerve fiber or filament.
The main causes of abdominal muscle spasms are: 1  Pregnancy spasms and cramping can occur during your uterus changing shape, hormonal changes, stress, over-exercise, implantation of embryo, miscarriage, ectopic pregnancy and labour. 2  Over-exercising-too much exercise and incorrect posture during exercise especially when lifting weights can cause ....hildren and adults can have sporadic abdominal spasms and there are some disorders and diseases that can cause them so it is always best to check for a correct diagnosis. A spasm is the involuntary and sudden contraction of your abdominal muscles and it can lead to mild or severe pain lasting short or long periods.