Does it work instantly??

I’ve had Zep sitting in my fridge for 3 months because I’ve been scared of the side effects. Not the nausea or upset stomach, but the major ones like pancreatitis, stomach paralysis, gallstones, etc… Well, I finally just did it. After reading countless threads and POVs, I decided to go for it with hope and a prayer that I’m not one of the unfortunate cases. I injected 2.5 on Monday morning. That day I felt super productive, focused, and didn’t think about food at all. I had to force myself to eat because the appetite just wasn’t there. Same for Tues, Weds, and Thurs. I am logging my food and I’m getting ~800-900 cals a day on average and I’m completely satisfied. I don’t feel sluggish or run down or hungry at all! I am prioritizing protein, so I’m getting at least 100g of protein a day, drinking a lot of water, and taking Bloom. It’s now Friday morning and I’m still feeling great. I haven’t started incorporating exercise yet, which I intend to start walking soon. And I know that I need to eat more calories to preserve muscle mass and nourish myself properly. But does it work instantly or is this a placebo?? I’m quite stunned. I’m not even weighing myself right now bc I am not concerned with the scale to start (I know my starting weight and took pics). Just trying to figure out my new normal. I’ve also not had any side effects. Been going #2 daily just fine and no headaches or tummy issues or anything! Is it too good to be true? Anyone else experience similar?