Understanding Fetal Vibrating Movements During Pregnancy

Question
Hi
Tomorrow I will be 26 weeks pregnant, and I have been feeling the baby move alot. My one question is this. Sometimes I feel this kind of movement that is like a vibrating sensation--the only way I can explain it is that it feels like the baby is having a seizure or something. Some of the movements are really vibrating like and very frantic feeling. I think I have felt when the baby has had hiccups, but I this is a different feeling (I think). I was wondering what you thought this was and if it was normal. I want to make it clear that I am feeling normal movement as well, but the vibrating thing has just taken me by surprise-it happened in the middle of the night last night and kinda scared me! Help please!

Thank you so much for your time!

Answer
There are many different types of fetal movements that you may feel during the pregnancy. HOwever, if you have  some odd type of movement, the only way we can assess the baby is via ultrasound. If you are worried, ask your obstetrician to do a sonogram to assess fetal well being.