Opinion needed

Hi everyone! So I miscarried in December and I was 9 weeks along however the fetus stopped growing at 7 weeks. I got blood work done in Mid January and my hcg level was at 7 . My doctor confirm I do not need further testing and that I should be good to go and to call if I don’t have get my period in 6 weeks. I got my first period end of January . Right after my period was over, I started cramping occasionally, my stomach was extremely bloated, back pain, frequent urination etc. I got my period this past Thursday . However the entire month I was cramping . What could all this cramping , feeling bloated have been? Anyone experience all this? Is it normal? Im making a doctors appointment and I’ll have t checked out. However , I just want your opinion. Thanks