Scared, nervous, and don't know what to think?!?! HELPP!!

This week I went for my usual weekly biophysical and non stress test on Friday (my usual day to so this, been doing this since week 26, an week 28 and 5 days now), and the ultrasound tech and doctor both told me Hunter scored a 6/8. I asked what that meant and they said he wasn't practicing his breathing motions, but he was super active and flipped 3 times in 45 mins of being scanned and he had hiccups for 30 of those mins. He heart rate is fine, and his strip was good so they started me on IV fluids and told me to go home and rest the rest of the day and come back tomorrow, which I did. Today they still couldn't get his breathing motions and hiccups the whole scan, now I have to go back for day 3 of this. Am I right to be worried or scared?