Brown Spots Pooping Up All Over My Skin Over Night

Brown spots pooping up all over my skin , over night ? Look like moles? Hi there, I am a 29 year old female and I am breaking out in what I think are moles, all over and over night. Everyday I see new spots. I went to my doctor because I was concerned since about 3 weeks ago I started getting tiny red blood spots on my skin also/ these look like a tiny drop of blood under my skin. He did not know what they were and ordered no blood testing. Still concerned I went to the ER and they did blood work which they said was fine. I think a CBC was done. Anyway while looking for the more little red dots everyday I started to notice that I was getting brown spot also. I took pictures of my skin to be sure that I was not imaging things and sure enough each day new spots appeared. I started to remember a funny mole on the bottom of my foot and one in the crack of my butt which I though was a pimple that never went away. Husband said it was a mole. So I go back to the doctor and let him see my pictures and show him the ugly moles/ He was concerned about the one on my back side so sent me to a dermatologist . I was seen there the next day, he looked me over and looked at the one on my butt and foot. He told me the one on my butt needed to be looked at once every six months but other then that I looked good. He did not testing and never offered an explanation on why these spots are coming up, I will admitt I was a bit anxious having looked these up on the internet so maybe he just thought I was being overly concerned I am not sure/ This is really worrying me. I have had a few moles my whole life. Suddenly though I am having an out break of them. I am also having an out break of these raised brown skin things all over my chest . Should I be worrying about this ?