Hey Jodi,
Ashleigh went thru a similar thing at 3 months she just started getting better last week. It was hard it would take us ages to settle her, even giving her the breast didn't always help. Day sleeps were even worse would take an hour to settle her for sleep for her then to sleep only 30 mins! To get thru it I just did whatever worked, i let her sleep in her bounder in the day so I could just keep rocking it and at night i just had to give her comfort feeds like every 10 mins til she got really drowsy of fell asleep.
Its a horrible time and so very tiring and I also worried is this how its gonna be from now on but as I said she started to improve last week, so prolly lasted just under 2 weeks.