Vibrating/shaking feeling???


I’m 27 weeks and 1 day. I felt this feeling when I was 26 weeks and about 6 days. I will be laying on my side and it will feel like my stomach is vibrating or shaking. It’s so quick can when I left my head to look at my belly it stops. He kicks me a bunch after but I’m concerned. Have any of you experienced this before? Or know what I’m talking about