Anyones baby sleeping a lot during the day lately?

So normally my little guy 4.5 months - 19 weeks old is away around 1.5 or 2.5 hours every day between his naps. These naps range from 30 min to 2.5 hours usually closer to 1.5 stretch. however the last few days he's SO fussy if he's awake more than an hour at a time.

He doesn't sleep through the night but he sleeps 630-630 with 1-2 feedings middle of the night.

He usually naps around

830

1030

130

And 430

But it justt seems more often now. Is there a growth spurt around now? I can't seem to find any info. He seems fine otherwise. Eating fine too...