I've only had one experience with bad entities. Mantis creatures feedings off my energy, felt drained for a couple weeks after that. It doesn't sound like you had a vampiric experience. More like you just saw a level that was a little past your threshold of dealing with the experience. If fear was present there was some part of YOU remaining that would not let go.
I've had a few experiences of going
too far, [my first time was about 80mgs and years later I smoked with an experienced friend an insanely large pile] Both of these experiences shattered my perceptions, beliefs, and modalities of being or dealing with reality. I had to SURRENDER and be torn up an re-assembled. Although I was shaken up from the experiences these proved to be VERY beneficial experiences after integration. The time I smoked an insane amount with an experienced smoalker I wondered how I could ever process the experience. I continue to do so to this day 2 years later. The benefits have been immense.
Everytime a new layer of the DMT onion is revealed it will shake you up, ALOT. It is infinite in there and everytime I thought I knew what was coming I got a big wake-up call and revelation of an even DEEPER experience of hyperspace. I have made peace with the fact that everytime I smoalk I will either learn more about a known level, OR, be shown a reality-shattering NEW level of that energy. There is no end to this path, its just how far do you wanna go. I am sure this experience will, over time, teach you to let go more in trips, meditation, relationships, and normal life. And if you wait till the experience seems integrated and your life has changed for the better I'm sure you will be able to LET GO to an even deeper experience in the future.
Everytime DMT gets deeper it will scare the beejesus out of you UNLESS you surrender completely. When you surrender completely you are just lost in the sauce and its kindof a surprise when you come back. Make peace with the fact that you may never come back, and your mind will be fully open. [Hint: You will always come back anyway]
DMT laughs at mental conclusions about experience, origins, or purpose. I'm sure you will find your non-duality strengthened in a grounded way that doesn't rely on mentally based aphorisms, and instead, relies on the immediacy of surrender in the present moment.
Blessings and digest well. Meditation, traveling, ganja and trichocereus cactus have been my best allies for integration I heartily recommend them. Cactus can is a GROUNDED trip [below the monster doses] that really helps me bring down HUUUGE spiritual messages from something like DMT or mushrooms.
In the province of the mind what one believes to be true, either is true or becomes true within certain limits. These limits are to be found experimentally and experientially. When so found these limits turn out to be further beliefs to be transcended. In the province of the mind there are no limits. However, in the province of the body there are definite limits not to be transcended.-J.C. Lilly
The Spice must flow
Zat was Zen and dis is Dao.