bug bites...possibly multiple kinds?

About 2 weeks ago, I developed small bumps on my arm near my elbow. They appeared to develop a small, clear head and itched like crazy. I then noticed that they began to appear - usually in odd clusters of 2 or 3. I thought maybe they were spider bites - they didn't look like mosquito bites, and they were only on my arms. They bumps stayed in the same condition, and have just recently begun to look like they were healing. Since then, however, I've had at least 2 bumps a day appear, first on my legs, then arms, now spreading to my neck, that looked more like mosquito bites, but were bigger, hard, and warm to the touch. These too also itch like crazy. I've been using hydrocortisone cream which seems to help somewhat with the itch, but does not seem to help them go away. I've researched all types of bugbites, but haven't found one that covers all these symptoms.

[jagesh50]

The one fact i know about bedbug bites otherwise known as cimicosis is that the bites are linear long the bug path travelled.Antihistamine at bedtime help.