Yes, that is just the drugs. Of course it is the drugs, it wasn't the ham sandwich you had for lunch.

Feelings are subjective, the drugs scrambling your brain is objective. They are both 'real'. Objective observations are reality, subjective impressions are perception of reality.

The truth is, you are just a brain in a jar. Your hands, tongue, ears, eyes, nose are all just sensory inputs. Grass is not green, it is every colour but green. We see it as green because we observe the light that was not absorbed. Our senses give us the best information of our surroundings so our brain can compute it as best as possible.

If you want to add mind altering substances into the equation, you can expect all your sensory inputs to become altered. Well, how the brain computes this information.

You have achieved nothing more than altering your perception or reality. You did nothing to change reality.

Unfortunately your brain has clearly taken its toll with the drugs and it is now permanently scrambled.