I was initially referring to aliens from another planet i.e. greys.
Isn't that worrying? You have aliens in your head and you're told to ignore it. Logically I assume you had an experience where you encountered space aliens and concluded they exist outside the realm of DMT influence, and whatever subsequent thoughts you had thereafter. You, consciously or subconsciously, was in disbelief or afraid, and so another trip brought out that disbelief, or attempted to heal it.

I had similar experiences. One trip where alien greys, computer-like techno characters, white beings, and other "entities" visited me, abducted me, took me outside of normal reality or "awakened me", and basically told me I create everything with my thoughts. After being distraught and having feelings of depersonalization and derealization for days thinking nothings real and that I'm creating it, I forced myself to not be afraid and just deal with it. So the next time I delved in I went back to the "outside" to a white void and met an invisible entity, he was saying something but I can't remember. But as it wore off I realized I do create reality with my thoughts, or rather I create my perception of reality with thoughts and senses. We already know that, DMT only helped fix what it broke.

..there are many fearsome things in this universe for sure, but, no, the 'greys' or various other kinds don't concern me in the end, as the big Alien, that is alien to the aliens, has everything under control..

ps. hoonsince89's encounter sounded more 'curious' than threatening..

I don't know about ignoring it. It's just that on DMT these kind of encounters are quite "normal".

Aliens in your head sounds freaky. I think they just move through the waves that come from us.

there could be aliens in your gut, or at the bottom of the compost heap..they are probably everywhere on umpteen channels..from a shamanic or buddhist perspective they are merely distractions...

To the OP....I suppose it depends on how you define "aliens".