Extreme needle like itching all over body , especially when i'm irritated or getting ready to play sports , no bumps or any of proof of the itching !

Need to evaluate: What you describe may be just your autonomic reaction to these situations, e.G, adrenergic response inducing sweat gland activity. You should consult your doctor to exclude a nutritional deficiency, e.g., B12 and discuss use of a beta blocker if the condition is interfering with your daily living.

Generalized Pruritus: Generalized itching may be caused by: allergic reactions, hepatitis, iron deficiency anemia, kidney disease, liver disease with jaundice, reactions to medications and substances such as antibiotics (penicillin, sulfonamides), gold, griseofulvin, isoniazid, opiates, phenothiazines, or vitamin a.