14 tattoos later why now?

I just got 2 tattoos it will be my 14th. They all are donr professionally. I have all black and gray tattoos. I do however have a colored tattoo on my left lower calf and decided i wanted to get 1 more color tattoo on my right lower calf to kinda match it up. Well it has been sore for a couple days I got the tattoo sat night and its now tue night... i never had a problem with tattoos i actually got another tattoo the same night and that 1 is perfect.. This one is a celtic shamrock pretty thick but not big....it hurts pretty damn bad when i walk or stand on it.... i do work construction and keep socks and boots on all day... I change my socks if they are damp... but I havent been putting A&D at work MON AND TUE so far.. (because my hands are really dirty)... i dunno if its infected ot what truthfully i wouldnt have thought anything of it untill my mother said damn that looks infected becuase its red around the edges.. she dosen't know shit... but it made me think because the pain and what not... any advise... dont really have time to go to the er.. but i will if it gets worse... and Im takin my cousin to get a tatt thursday and will me see my artist....