Mastitis-help needed

Okay this is my situation, I'll try and keep it short.

I went away this weekend for a class that I had to take out of town for, my DH and DS came along. We flew and didn't get in until 2am I was really tired, had to go to class the next day and my DS didn't sleep that great in unfamiliar surroundings. I have had ongoing issues with my right breast and I'm guessing what is a nipple bleb that refuses to go away. I've noticed that if I take a vitamin then this breast always gets a clogged duct associated with where the bleb is...I guess I just sort of assumed vitamins tend to calcify this spot, and so things seem to work better without. I was taking my prenatal vitamin-- Primacare One Softgel. A couple days before my trip I thought what the heck I'll try one of my older DS's flintstone vitamins with extra C, I know I don't have a great diet--it's just hard. Sure enough a clogged duct follows Usually it will just resolve itself if I stop the vitamin intake, which I had--I only took one flintstone..maybe there's no connection and I'm just crazy but it sure feels like a connection. Well this time instead of a resolved situation--maybe the very little sleep combo added to it--I end up the next night drained of all energy, achy right breast and fever I called my OB who Rx dicloxicillan, I started taking it on Saturday..my right breast feels perfectly fine now but I still feel awful. You know, the thing about all this is that the right breast just sort of felt achy like when you get a clogged duct, the clogged duct did go away like it usually does and once it did it felt normal again.

Anybody else have a similar experience? Do I even have mastitis, or just the flu? What should I do?

Thank you