Don't Wanna Even Know

....what gave me these welts.  Since we've been here, I've had been bitten constantly by unseen little creatures and now these welts.  I scrubbed the grout of all the floors except for the one downstairs (haven't had enough time).  I sat down to color with Sophia (we have no tables yet) and anywhere my legs had touched grout had these nasty itchy lines...eeeeeew!