I bottled a batch of Zinfandel that was bulk aging for 13 months. The grapes were from Napa, CA. They have been in the bottle for a little over one week. I had a bottle last night, it was very good, but I felt the effects after the 3rd glass, which I rarely ever feel. I also woke up with a headache, which rarely ever happens. I did sterilize the bottles with a SMBS solution, but I did a final rinse. Any ideas? .