its part and parcel of the journey to becoming a mummy hun!
With my first i had awful skin until 12 weeks and never had a bit of sickness, then my skin cleared and i bloomed. With my second i had sickness, awful skin and lank hair and i never bloomed. And old wives tale is that women expecting baby girls never get that perfect skin and hair as their baby takes all the beauty from them lol
The pain when you wee first thingin morning may just be that you bladder is under a bit of pressure from the uterus but this moves out of way at around 12 weeks too.
The stabbing pain may just be that you are wary of sneezing and are tensing ready for a twinge.
BUT as already mentioned you can call the NHS for advice, they willbe able to help, or you can see your GP.
And the worrying wont affect baby and you certainly arent being ridiculous. Mums spend the first 12 weeks knicker checking and the last few weeks doing the same thing, its just part of being a mum / mummy in waiting x