Thank you!

My try

3 people apparently saw me in their dreams today, am I about to die ?

 ...told that they.......

which comes from where ?

 "-müş" from "görmüş"

 not necessary.

We use muş - müş generally to tell what someone told us or to tell something we haven´t witnessed. We can translate it in many ways. S/he told that... is not the only way.  Because you can also use it when you are talking about a person´s deeds in the past you read in a book. Then you should use past perfect tense to cover muş -müş´s meaning. Also sometimes you have to use present perfect tense. Or you can cover its meaning with using apparently.

 Thank you I could not see why it was ..

Surely to be ´told that´ it would need to be more like - bugun 3 kisi bana beni ruyasinda gordugunu soyledi / soylemis

    (i know its wrong but i mean this structure more )

 Just a little edit so not to confuse english learners. We would never say he told that. It needs to be , He said that ...or he told me that

 But you use "apparently" very often in your language 

 I don´t get your point ?

We use muş - müş generally to tell what someone told us or to tell something we haven´t witnessed. We can translate it in many ways. S/he told me that... is not the only way. Because you can also use it when you are talking about a person´s deeds in the past you read in a book. Then you should use past perfect tense to cover muş -müş´s meaning. Also sometimes you have to use present perfect tense. Or you can cover its meaning with using apparently.

Thank you all for your replies!