I injected drug vomit into my veins

So one right I was riding around with my meth dealer and we got pulled over. He ended up eating 3.5 grams of meth. The cop let us go, so when we got back to the house I gave him several glasses of water and told him to puke it up. Well, when he did I pulled up the water in a syringe and mainlined it. It worked, I got very high. I've been clean for a year now but I still think about this alot and it disgusts me so much. I'm very ashamed of it. It's definitely the lowest thing I've ever done concerning addiction.

Edit: Thank you guys for all the supportive comments: )