35+6 Baby Heart Rate 165

Am

Went to my midwife appointment this morning and the baby’s heart rate was 165 so I was referred to the hospital to be monitored. Whilst there her heart rate did go up into the 170’s but then seemed to settled down into the 150’s (which is where she is normally).

The hospital said that it might be just because she’s been active this morning.

I was so worried. Has anyone else experienced this?