My cat is acting as if she is on acid or somthing?

she keeps looking in circles and her eyes are huge and her pupils are dilated her and my oldest male cat are doing this 2 of my 6 cats are doing this so i dont know if that means anything or not but its freaking me out
Update: and they have been doing this since early this morning so its been like 11 hours straight
Update 2: have you guys ever seen someone one acid or shrooms thats what my cats are acting llike but they are happy and dont look sick
Update 3: they are happy but not when they get together but they are bth doing the same thing looking in circles eyes huge but they dont look hurt in any way they just look relaxed
Update 4: if theirs a way to put up a video i will u just got to let me know how
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