Ok so what happened with the mead is that the honey didn't mix well in the water when I started despite my best effort to mix it thoroughly. I got a very low OG of 1.025 or something close, so I manually mixed it until it was 1.057. My guess is that it still didn't mix all the way through because now the the gravity is 1.091. I'll have to think of a better, more effective solution for mixing besides shaking for 10 minutes. For now I've added more yeast, I think it stalled.
Regarding the PH I was more concerned with botulism.