I am 19 years old and I do not have schizophrenia or any other diagnosed psychotic disorder. 

I am asking this question because I have been having experiences with weed that I have never heard of happening before. 

I am posting this question here because schizophrenia is my biggest fear when it comes to my weed use, and because I do not know much about my family history on my mothers side which worries me because she struggled a lot with pretty severe unidentified mental illness.

Experiences that worry me:
1. While I am on weed, if and only if I have been smoking daily for a while (2+ weeks) and have built a moderate tolerance, I will get a feeling of pressure in my head (mostly behind my forehead and on the top of my head). This pressure ranges from slightly uncomfortable all the way to searing sharp pain depending on how much I smoke. I should note that if I have not been smoking recently and do not have a tolerance, I don’t get the feeling at all no matter how much I smoke in one session. The feeling will fade over the course of 24-48 hours. 

2. I have recently noticed changes in my mood that are subtle but noticeable. I have become both more apathetic and anhedonic in the past few weeks. I have struggled with these things growing up, but usually there is some kind of specific trigger and it gets better as I change my environment and mindset. This time there is no clear trigger or sign of improvement.

3. I haven’t started hearing things necessarily, but I’ve noticed an increased tendency to mishear sounds. I will hear a backpack zipper moving and perceive it as someone saying “Hey”, before thinking for a second and realizing what it really was. 

I am mostly concerned about #1, which is why Id like to ask this subreddit if any of you have had a similar experience with weed. Additionally, what differences in the effects of weed have you noticed in yourself that your non schizophrenic peers don’t seem to get?