I have chlamydia and everything else negative, but i have itchy red bumps on my arms/legs, is it a symptom of chlamydia or could it be something else?

Not likely chlamydia: Not usually a symptom of chlamydia. It is something else. but it still could be a STD, for example: scabies. Many other things also cause itchy red bumps, though, including dry skin, skin infections, liver or kidney problems, medications, allergies to things you eat or things that touch the skin... I would suggest you have have them checked out, preferably by the Dr. that diagnosed the chlamydia.