Braxton Hicks?

Cait • ♡ 14.07.18 my beautiful girl was born ♡ 15.02.21 baby #2 is due!

Last night I all of a sudden came over feeling REALLY sick, dizzy and horrible. I had to lay down and close my eyes to stop myself from being sick. I then had a really intense pain going right across the middle of my tummy which lasted around a minute and went away. This happened 4 times. Each time my belly went rock solid. I was / still am extremely worried. Have read it could be Braxton Hicks. What do you guys think? Any information would be much appreciated. I am 28 weeks pregnant