I would go up to the 50 billion count next and when that runs out, move up to the 80 billion count afterwards. I think its best to ease into the probiotics and not go all out with a high count at first.
The headaches are pretty normal and will eventually go away. You are getting a reaction to the alcohol, but its not very much alcohol overall (won’t set you back too much in other words). I sometimes get headaches from the products with alcohol also, and this is just the nature of being ill with candida.