hallo there Bunnyhugger,
my heart just skipped a beat when reading your post, and all i am thinking is: am i heading in the same direction

my lb (now 6 months) was sleeping very well only waking up once a night till 4 weeks ago.
everything went from bad to worse - teething being the first issue.
he was also sick and i started to introduce formula (he only gets 1 bottle of formula a day the rest breastmilk)
for a week now he woke up every hour. last night it was at least every 2 hours.
he has got 2 teeth now. not sick anymore and i am trying a new formula
please tell me some of the things you tried to improve sleeping?