this may be an odd question

Alexis • Mother of 3, two in our arms and one in heaven! Already had our rainbow! Pregnant with our last, and it’s a boy 👦
So all day today when I use the restroom my urine seems to smell almost like a sharpie marker? What could this be? An infection possibly? Dehydrated ? I had a Nst today and babies heart rate was up to 180's and the nurse made me drink some water cause she said I was probably dehydrated, shorty after I drank two glasses her heartbeat went down.. so I've been drinking water all day so I don't think I would still be dehydrated.. any ideas ? I'm 36+3!