Daniel Kaluuya (born 8 May 1989) is an English actor, comedian and writer, who is best known for playing Posh Kenneth in the E4 teen-drama Skins. He also appeared in the BBC dark comedy series Psychoville playing Michael Fry (a.k.a. Tealeaf) and Mac in the BBC Three's horror drama The Fades.
Abdominal fluttering or spasms can be caused by pregnancy, muscle fatigue, stress, excess gas or acid in the gastrointestinal tract, or bowel disorders. Abdominal fluttering is described as a vibration or fluttering sensation in the abdomen, according to Steady Health. Continue Reading.
These medical conditions that cause muscle twitching and pain are discussed below. Diseases Causing Muscle Spasms. Muscle spasms or muscle twitching occurs when a muscle forcibly undergoes contraction and is unable to relax. When muscle or even few muscle fibers contract involuntarily, it causes a spasm.