No judgement here, just curious

So tonight I went to Walmart with a handful of coupons for a variety of name brand tests. So I ended up with an embarrassing scene at the check out line. The cashier was giving me odd looks and the people behind me in line (who very obviously knew the cashier) were making very loud, rude comments to each other abt the number of tests I was purchasing. Anyone else experience something like this in a pharmacy or grocery store check out? It made me more upset than I would like to admit...just wondering.