I just finished doing a rockfish ale on saturday and used wyeast british yeast strain. It is a slap pack activator. I slapped the pack how i normally activate all yeast, the bag never expanded like it normally does. when i shake the bag, i could hear a phizzing sound like there may have been a small hole in the bag. I pitched the yeast because i had no choice since i had the wort already in the fermentor. Is the yeast bad?? I checked on the wyeast website and they say the bag should not have to expand fully, but kinda worrried about the yeast not activating. any thoughts???