Only one fibroid?

I went to the emergency room today. For the last two months I get my period and I am in extreme pain from my abdomen to my back. Did a wand ultrasound and they said I have one fibroid, can this little thing really cause this much pain only for a couple days then when my period stops it’s gone? Also experienced spotting last month. I’m 24 pretty healthy. I’m just scared because fibroids run in my family all ladies in my bloodline had to have a hysterectomy by 30.