Overdose Question

So, I had my first successful IV last night using a tiny bit of my $45 of dope. It was absolutely fantastic and the rush was almost overwhelming. The high lasted for a fee hours and would probably have lasted longer had I not had something come up and caused an intense surge of adrenaline. In an effort to take my life, I IVed the rest of the tar (some pretty intense dope in the first place and it was on no tolerance so....) and drank a 40oz on top of that. I was laying bed on my back and could feel vomit rising in my throat as well as my breathing became labored. Obviously I pulled through (to my displeasure)

On to my question, I woke up this morning (its been between 11 and 9.5 hours) and my legs were extremely weak and shaky like they were when I first shot. My pupils are still practically non-existent and Im still having to do pirate eye to type this. My breathing is still shallow and my body is still incredibly relaxed and itchy. Is this kind of thing normal? Thank you in advance!