Can obesity lead to swelling in legs and feet al had echo cariagram and stress test came back ok i have severe obstructive sleep apnea if i loose we9?

Do lose weight!: Losing weight will certainly help both your swelling and the sleep apnea! Will it cure both? Depends on whether or not something else is causing either or both. But both will improve with weight loss (usually!) and you will certainly be healthier if you lose weight. Go for it! (High protein-low carb diets are not the way to go for most, these are causing their own set of med. problems.)