Okay, odd title, but I've noticed a trend and now I'm curious. History: I'm diagnosed with BPD, C-PTSD, Major Depression, and recently Bipolar Affective Disorder. I go through periods of Down that isn't quite depression, but it just feels... Flat. Like everything isn't quite reaching me, and I'm slowed down and miserable because I can't make myself do anything. Brain fog and executive dysfunction overload. I'm used to the brain fog from the POTS, and know it can come from the other things too, but like. It sucks, it doesn't go away till it seemingly wants to. I've noticed in the past that when I drink energy drinks (Monster, Red Bull, Bang, etc.) when I'm like this, there's a good 75%+ chance that it'll break the feeling and I'll start feeling normal. Sometimes it takes more than one, but it makes a big difference. The last few days I've been in a similar funk, and similarly feeling like garbage, and while I couldn't get any energy drinks today (plan to get them tomorrow) I thought "wait, what if coffee". So I hobbled my ass downstairs and made a tall glass of milk up with two big scoops of instant coffee and an instant breakfast, came back upstairs, chugged it and. ..... I feel better? Like. Noticeably better. Not perfect, but a LOT better. Things feel like they're reaching me again, the weird weight is off my head, and i can interact with people easier and I'm not as exhausted feeling or flat either. Now the science question, though. For others with mood disorders: does caffeine or energy drinks do this to you? Do you self medicate with them knowingly or unknowingly? Is it actually not the caffeine and instead the b12 and other things in it? Did the carnation instant breakfast kick me in the "you need to change your diet" button? Is this an aspect of mood disorders I just didn't know about? I'm honestly curious and would love to hear.