Yeah I dislike 4-FA's comedown. The comedown from the combo was better though, I actually find that 4-HO-MET (in particular, not sure about others as that's the tryptamine I have had access to for a while) really combines with empathogens well, it seems to buffer the negative effects all around and make the experience "fuller" and even more pleasurable.
The only thing that happened, which may have been related to dosage, or the combo itself, or neither (unrelated), was that after a couple of hours I began getting a weird stomach pain. At first it felt like gas, just a bit annoying but it didn't detract from the experience. At some point, absorbed in music and thoughts of love and other emotions and their meanings, I realized that the pain was pretty severe. It felt like bad gas/indigestion. I started to break out into a cold sweat from the pain and it felt better only when I stretched out my abs, but didn't disappear, just felt a bit better. It progressed even further... eventually I went to lay down in my bed, sweating quite profusely and feeling weak and cold. I didn't think to take my temperature unfortunately. It felt like my stomach was on fire, the whole thing, just absolutely hot and flaming. It was a really weird pain and I started to get worried that something bad was happening to me. Mentally and emotionally I was fine but I was a bit scared and definitely was eventually focusing primarily on the pain rather than the positive effects. It stayed at that level for quite some time, definitely hours, and then slowly faded away. I was able to fall asleep some hours later, and the next morning I felt perfectly fine. It did give me pause to try it again though. However I have not heard of anyone else describing this reaction (though I haven't heard many reports of it... in fact I have only heard others say they've heard good things, not read accounts for myself; for all I know they just heard it from me). I've combined 4-HO-MET with methylone and with 6-APB as well, to good effect without any alarming side effects. I feel like it was a one-off thing and I don't really like 4-FA too much anymore so I may never try it again, but I think if someone gave me some 4-FA I'd probably give it a shot again, it was so good that I think it would be worth the chance of experiencing that pain again (though if I did I'd never try it again).
Seriously though, my brain felt absolutely FLOODED with serotonin/euphoria. My pupils were as big as I've ever seen them, just pure black. I was breathing in gasps at times because the feeling was so intense and pleasurable. I also went on a mental voyage whose subject matter was all centered around love and the duality of emotions - love/hate, anxiety/joy, etc. It was quite revealing though I didn't write anything down (couldn't be bothered to interrupt my journey) so I don't remember a lot of it anymore. I should write a report with what I can remember.
I'm trying to remember my dosages... I think I took 80mg of 4-FA rectally to start, then added 40mg FA + 15mg of 4-HO-MET, then my redose was probably 12-15mg of 4-HO-MET with maybe 30-40mg of 4-FA. All rectal. Taking that much 4-FA by itself makes me feel like shit the next day but I really did feel fine the next day with this combo.
Oh, and my reason for the redose was simply because I wanted to maintain the state, I felt it slipping a bit, getting weaker, and I wasn't ready for it to get weaker. The redose wasn't quite as pure as the initial hit (unsurprisingly), but it did ramp it back up to close to the same level. Also I only got the weird pain post-redose, though that doesn't necessarily tell us anything.
![:\](https://bluelight.org/xf/BL_Images/Orig_Emoji/wrygrin.gif "wry grin :\")
But it sounds like a blessing in disguise, and also sounds like you realize that. It's still difficult, no doubt. But I bet in a couple of weeks at most you'll be feeling better than you have in quite some time. 
