Anyone know any anxiety tricks please?

Ive been having a multi-day anxiety attack. I feel so sick. My body is stuck in fight or flight mode.

This started Wednesday when I lost my pill case for the day when I was 2+ hours away from home, including the opiods im prescribed. (30mg morphine ER every 8 hours and 10mg oxycodone twice a day). That has set off a 2 day long panic/anxiety attack. All my usually methods are NOT working; hydroxyzine, buspirone, marijuana, etc. Im barely sleeping because im completely overtaken my anxiety. Can anyone please help?!

My sister is visiting from out of state right now so this couldn't come at a worse time.

Any ideas?