Could 'thinking I see things' be classed as hallucinating? Before anyone says anything, it's not because I'm tired etc.
Through out the day, as I walk down my street or whatever, I often 'see' things in the corner of my eye or sometimes straight in front of me but as soon as I look towards it or blink, its not there. Most of the time I shrug it off, but it's been getting much more frequent. I'm never really sure what I see either. Sometimes it's people-looking blurs, other times it's literally just a blur. I end up questioning whether I actually saw it or whether my head is just playing tricks on me and I'm thinking I saw it.
As well as this I seem to have a habit of hearing things - like my name being called and odd sounds etc.
Aside from tiredness and stress, what could cause this? And is this the same as hallucinating or is hallucinating the much more stereo-typed 'see something very obvious in front of you and believe/it seems real'?