strange? worry or not ?

earlier i was writing about “dreams” i had… but now i remembered something…. once i was walking down the street and it was like 5:50 pm  … im not sure, but it was something like that… and then i saw a little white dot up in the sky … crossing up n down… i had a feeling like someone is watching me  from that dot ( or maybe better to say ball ) … and for like 5 minutes i was watching it n then it suddenly  disappeared …. then  i heard some voice in my head… well actually it wasn’t  a voice…. it was something strange … like a sound of old computer trying to connect on internet…  what do u think? do i have a reason to get worry