Is my 15 month dropping a nap?

[Lottiebugz22]

She won't sleep during the afternoon. She has a morning nap about 9.30am for an hour or around 11am for an hour. She's always overtired at bedtime.
She used to have a morning nap for an hour and an afternoon nap for an hour.

Would say so.

Mine is 16 months. She has been on one nap, couple of hours after lunch for a while now.

She will occasionally have a quick twenty minutes in morning if in the car or if snuggled in.

I would say yes! It might be worth trying to gently push the morning nap back so you can work on getting a longer nap after lunch!