hi, a couple days ago i started getting red itchy bumps on my legs. It started out with 1 red bump and spread to other parts of my leg. I noticed it happens mainly at night. The red spots then turned into dark purplish bruises and they also hurt when i touch them. Im not sure if a bug is biting me or not.. I dont have any history of bed bugs in my house. I do have cats, they sleep in my bed with me and they have had fleas in the past, so could it be flea bites?