Has anyone ever had any experiences that just make them question the reality of things and the nature of time and space?

Ok so I’m just gonna run through a few things that have happened and see if anyone else has had similar experiences. <br><br>1: I was in the kitchen at maybe 8 and my elder brother was sitting on some stairs just next to the kitchen. I asked him what he was doing and he told me he was waiting for our dad to call him down to eat dinner. I went upstairs and asked my dad when dinner was going to be ready and he was shocked to see me because in his words “I hadn’t come down yet”. I went back downstairs and my brother was in the same position as before. I asked him again why he was sitting there, and he replied “I’m waiting for dad to call me down”. I went back upstairs and me and my dad had the exact same conversation as before and I when I went back downstairs again my brother was still in the same position as before. This is something that me and my dad have spoken about since and we are both certain that it happened. <br><br>2: So my friend and I were sitting in a park at around 5 talking and just shooting the shit. At about 5:15 we decided that we were gonna head to the shops just down the road to get some snacks. We got up and started walking to the shops, and I remember as we were walking I noticed the time and saw that it was 5:13, as if only two minutes had passed. Me and my friend have both talked about this and neither of us can explain what happened.<br><br>3: I’m not gonna go into this story too much but me and my friends were doing some light drugs (nothing too serious) and we were just sat in a room together. I suddenly got up and went to the bathroom, and when I came out my friends were all just gone. At first I thought that we had all gotten up to leave but it turned out that I had just gotten up even though I had no recollection of it. <br><br>These are just a few experiences that have made me question the nature of reality.