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.
1 Muscle Tension Anxiety causes a considerable amount of muscle tension, and muscle tension can lead to both cramping and spasms. 2  Muscle tension is a lot like exercise-it tires out the muscles and causes them to spasm as a result.hese types of worries are a side effect of anxiety. Anxiety can also cause their own muscle spasms. The most common reasons for spasms include: 1  Muscle Tension Anxiety causes a considerable amount of muscle tension, and muscle tension can lead to both cramping and spasms.