I might be getting sick!

So ever since last night (we turned the AC up do temperature was at 75 but realized that's too warm for a newborn) so we changed it to 70. Ever since last night I had a mild sore throat but it's the kind of sore throat I'm used to getting right before a cold and now in the past hour Iv had done mild sniffles.  I feel ok in myself and not suck but usually when I get a cold it takes a day or two for it to kick in. My baby is 12 days old and I'm breastfeeding exclusivity! What do I do? I don't want to get her sick!!!