Are Bad trips known to reoccur in the brain, by using another drug.?

So heres the story .? ex. after you know using Extacy and have expirence taking shrooms ... but already having a bad expirence on both knowing how it feels ....lets say u are just rolling one night ...? and smokin some very podent cannibs called kronic. No longer feeling the side affects of the X already werein off...yet somthin triggers in the brain and all of a sudden everythin is going wrong! Colors are seen and wavy significant visuals appear! like if juss swalled some shrooms! as if takin a psycedlic(forgive i cant spell) drug ! But you didnt at all? YOUr hearts racing and u feel a loss of sanity cause you have no idea whats going on cause this has never happen before so your trying to control from losing your mind! Completly different feeling from rolling! So you know its not the X at all. having the expirence of taking shrooms before made me aware of what state i was in thinking somthin triggerd in the brain to cause a real vivd flashbak to a trip i had on another drug thats wats catchy what i question ....maybe my body just had a negitive reaction to the cannibus i have no idea i need answers ive done my research nothing has popped up Maybe somemone machure can explain this or what it could possibly be please reassure we are all adults here please do not answer if yor here to not be serious i want someone to answer who knows what they are talking about please!!!!!!!!!!!!!!!!!!!!!!!!