Could I be experiencing a nursing strike or sleep regression with my lo?

Adriana

not sure what the symptoms are of nursing strike or sleep regression. this is my first time breastfeeding lo is 7mos. and lately she's been teething she has 2 bottom teeth that came in and now I think her 2 top are making there way out. anyway lately she's been really fussy with my boob like cluster feeding almost but worse not sure how to explain it. I know my supply is good so that's not an issue. it's just pop on pop off and then refuse to nurse and when trying to get her to nap she will scream while trying to nurse her to sleep for instance she normally nurses to sleep just fine but last night she decided to turn away from me and put her self to sleep. Are these things I explained nursing strike or sleep regression? Any advice helps thanks!