What are these bumps on my buttocks? (PIC) possible molluscum? Help!

okay. it all started with a big skin tag that was sitting there since April-MAY. VERY recently i tried popping it to get rid of it, but no prevail. but way before that, in late September and early OCTOBER i noticed these bumps were appearing. they do itch, especially when it comes into contact with my underwear or pants i wear for work. i have done tons of research. doesnt resemble herpes. and i worried about genital warts but they are not cauliflower like and that one skin tag looked exactly like a skin tag. i have a bump like one of these on my thigh but i popped it and its scab is still there. my only intial thought was molluscum contagisum (however you spell it). because once i started touching them, more would spread. they also have a dimple with a white shiny head. these can turn into little skin tags.

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