Terrible night - why?

So last night I started to feel nauseous and light headed and have a head ache. I feel asleep on the sofa at 8.30pm and then eventually went to bed early. All night I kept waking up feeling sick and having a head ache. What does this mean? Am I coming down with a bug or am I pregnant? I am only 8 DPO so could it be the beginning signs of pregnancy? I still don't feel like eating, only ate half my meal last night and no breakfast this am. This really isn't normal for me!!

Also the last two nights I have kept dreaming that I am pregnant. I woke up in tears once because I knew that it was only a dream and not true at the moment. I also dreamt that I woke up this am and took a pregnancy test and it was positive. Are my dreams trying to tel me something or am I so hopeful and wanting to be pregnant that my dreams are playing tricks on me?

Anyway I got up this morning and took a pregnancy test, one of those that says it is a 7 dpo test that is very sensitive. Well I got a BFN!! I am a bit disappointed as my dream had let me down, but it is too early to take a test really so I am not counting that one!! I will now do as I should do and wait for my period. If it comes I have my answer and if not I will test with a proper digital pregnancy test.

I just hope/want/wish I was pregnant. If I was pregnant I wouldn't mind feeling like this, but if it is just a bug giving me false hope I am going to be REALLY pissed off!!! lol. What does it mean?

TTC has made me realise just how impatient I am and how time seems to stand still for me!