I brewed my fist batch of beer ever in early October, which turned out phenomenal. However, i haven't had any in about 6 weeks. I cracked some open today and there was a lot of carbonation on the glass, almost like soda water, but not as much, and tasted horrible. I tried the remaining 3 bottles and they all had these characteristics. I am guessing either the beer has expired or I had a run of 3 bad bottles I did not bottle correctly. Any thoughts or ideas?