I exercise lost weight and my blood pressure is 151/94 what could be going on i am not on bp meds?

Blame parents: Genetics is a big actor in your bp. You are correct weight is also--if bmi <30, it is not likely the cause (or contributor), if still >30, may have more to go. Some are salt sensitive as well. Diet changes (other than no added salt) don't often work long-term. Should record your BP several times over a weeek & take this to your dr. May need BP med to improve.