11 Day post Emergency C section

hey everyone! so I had an emergency c section and honestly I didn't look closely at what healing from a c section would be like I was super confident I'd get to have my kid vaginally. Anyway so I am 11 days post op and last night I felt like my abdominal muscles were contracting almost on their own. does anyone know if this is normal or do I need to be concerned? it felt super weird but didn't hurt and it didn't keep me up i just noticed it while I was sleeping.