Stimulants Meth all day - Where is my Dopamine??

[Xiller8]

I've been using meth for 5 years, but the past year and a half I been strictly slamming and eating only my morning dose. When I slam I slam alot, everyone says I do way too big of shots, but I disagree because anything less won't make me cough.
Ivehad a ball since Thursday night but today I'm not getting high af like u usually do.
I took 1 oral dose at 8am, and I've done 2 shots since after dinner but I'm not as high as I usually am, I should be straight tweaked in a good way right now.. I know it's not because I need sleep because I sleep every night, I've been eating all day and I haven't missed any of my shots. So whats the deal?
Is it True that your brain can release all your dopamine and you won't be able to get high again until its able to store some and release it later?

 

[KS78]

Based on your experience, it seems true.

 

[2spun4one]

It could be that you just got the high all the time blues...kind of like if everything was perfect in this world would anything be perfect...