am i flagged? positive swab test at pacific highway border

i had a HORRIBLE experience crossing the border the other day, i went to the states to drink with friends and my boyfriend picked me up. it was my first time doing this but literally everyone had told me it’ll be fine because everyone does it……. it wasn’t.

as soon as i pull up to the border they try to convince me i did drugs? and im like no, i just drink and i am just drunk getting a DD home. and he kept on being like “just tell us, we won’t prosecute you” or whatever and im like ????? well i didnt.

SO THEY DECIDE TO SWAB MY BAG. but i’m like aight whatever because i have nothing in there that can get me in trouble legally, and nothing has ever TOUCHED that bag (i dont smoke, nicotine or weed, and i dont think ive even seen hard drugs in 5 years). well. it comes out as positive for fucking cocaine. WHAT????????????? they start interrogating me again, i start crying because im incredibly overwhelmed (i know i shouldn’t have cried but i was on the verge of an anxiety attack and i can’t really control that so please no weird comments lol) and all i can do is insist i don’t know how that happened, BECAUSE I DONT.

i go to the states a lot, i literally cross the border multiple times a month because my mailbox is in blaine. im so anxious about this because i also have 2 concerts coming up in seattle that i CANT miss. any insight? :(