Expired pills

I bought 100 pills clicks brand rhinestone for allergies 2025/08/20 and it's expiring date is 2025/09 so they sold me pills that expires in the next 10days reason I check expiring Date after I took them I had slow beating heart and felt dizzy where I had to sit not doing anything I don't know what will happen to me as I took expired pills as a normal person when you buy pills worse 100 of then u won't finish them in 6 months I just checked pills I bought from them same months they only expire 2027 so why this one a month later and when I call they said they can't do anything with that as I didn't check expering date that time

Reason I went back and chevk