Yes. Overdosed a couple times. No one was around for any of them. I was lucky to eventually wake up.
The worst time I was alone, been on Suboxone for a month, 32mg/day, wasn't doing shit for cravings. Skipped 3 days, bought $40 worth of brown powder, was starting to withdrawal with the constant and painful shitting, nausea, sweats, shaking, etc. Mixed up and shot. Stuck the needle in a glass of water to rinse it out, filled it up with water, then the rush hit, and kept on getting more and more intense. I remember taking a deep breath in, woke up 4 hours later on the floor with the glass of water on my back and a busted needle in my hand with water everywhere. I blacked out and knocked over the glass of water I was cleaning my fit with, on my way out of the chair I hit the desk I was sitting in front of very hard with my back, the edge of the desk scrapped a chunk of flesh off my shoulder blade through my t-shirt. When I woke up and cleaned everything up, I took off my wet shirt and on the back was a big yellow and reddish brown stain the shape of the wound on my back. For several days I had to wear an undershirt, as the puss and blood would seep through my shirt.
The amount used was not above average for a shot for me, and I assumed a dependancy on 32mg/day of Buprenorphine would make my tolerance nearly as high as it had been with Heroin. Was very wrong.
Overdosing alone is scary, and sad. I've noticed immediately I did too much after a shot before, and my last feeling was sadness. There was no one around to help me, or notice. Same thing when waking up from a survived solo OD. It's very depressing to clean up the mess, and think about how you could've died alone with nothing but a needle as a witness. What a scene for friends or family to find, too.
States are gradually opening up OTC Naloxone programs, where a brief training course and Naloxone nasal inhalers are given out to addicts to use on someone in case of OD. The pilot project proved very successful, down in South Carolina. This should be instituted everywhere. All you have to do is stick the tube in their nose and push the back end of the inhaler.
They should have been around sooner, so many deaths could've been prevented.