Update: Doctors Appointment and Thyroid check

Ma
Hi ladies!! 
So I recently had a yearly exam done and also a thyroid check. My physical done last January revealed my throat glands were swollen. However my most recent tests came back with normal thyroid levels and my Pap smear was normal as well. 
The doctor now wants to do an ultrasound to see if everything is functioning properly..Has anyone else had this done?