Constant Vivid daydreaming is it bad? Read the description it gets a lot worse.?

I have daydreams of flashbacks this started in September but i think it’s because I’ve done mushrooms and weed last few times i did weed i freaked out and really hallucinated i went to the hospital i thought i was having a heart attack when i got there my heart rate was really high they calmed me down and asked me if i had a history of depression or schizophrenia in my family i didn’t know so i said i didn’t know they kept me there till my high stopped then sent me home i was 16 at the time i still am i quite since then but since then i’ve felt really depressed, dissy and light headed spells and in the morning i feel normal but like 2 hours after that i start keep having vivid daydreams of flash backs i keep zoning in and out of reality and during these day dreams pain is delayed (e.g. i get pinch 3 seconds after i feel the pain) I also have bronchitis (caused by unrelated infection in the summer but hasn’t cleared up yet happened in august and it’s now January probably cause of smoking) the daydreaming slowly started happening at first i was ok after the weed freak outs but then i got neck pain and headaches then i started getting lightheaded then randomly one day i hallucinated the walls weren't there it just looked like blue sky i was like WOO then i shook my head and the hallucination went away now i have daydreaming every day and it’s really bad i can’t tell whats daydreaming and reality and it’s hard to control myself some people think I’m a crazy hyper guy but I’m actually freaking out. I have bad anxiety attacks. IS THIS SCHIZOPHRENIA? If it is why am i dizzy and lightheaded and get headaches? Should I seek doctor attention? I’m scared please help.