"I'll take 'Three-month Growth Spurt' for $200 please, Alex!"
Sorry, too much Diet Coke while I try to stay functional today. LOL
Anyway, it's possible that the growth spurt is upon you! This may also be part of the short-nap thing - was in Josie's case, anyway. Because of that waking, she never really got fully back to sleep and was waking up tired, so her first A time was only an hour, so her first nap was only 45 minutes, and and and......we ended up with an OT baby despite 4-6 of those 45-minute naps daily.
One thing Tracy had us try was giving her a "snack" feed at naptime. First I tried keeping her awake for an hour and 20 minutes, at first only managed an hour and 10-15, playing quietly in dim light with a soft toy to try to keep her going. When she could barely hold her eyes open any more, I offered one breast, let her nurse, and put her down. Sometimes she'd fall asleep on the breast, sometimes not, but by then I was so tired of the cycle I was just happy she was ASLEEP! Anyway, after a few days, the extra feeds not only got more calories into her but also helped my own supply increase. No more hungry baby, no more night wakings, no more short naps! (We also had to learn to extend her naps to break the 45-minute wake-up habit, but by then it was pretty firmly established and that took maybe a week to get consistent.)
HTH!