Paranoia problem?? Help please?!!?!

OK, so a couple of days ago, I found nits in my hair. I know, disgusting!! Anyway, I used this special shampoo that gets rid of the lice and kills the eggs too. Then my Mum went through my hair with a nit comb and got rid of everything. We've been constantly going through my hair with a nit comb, and Mum never finds anything. She washed the bed covers in boiling hot water, washed the teddy I sleep with every night and has put it in a bin liner in the garage (it'll stay there for 2 weeks). She's also washed this brush I've got in boiling water ( It's a special one so we don't want to throw it out) and disinfected it, and all my clothes I've been wearing. The only thing we haven't done is shampoo the carpets and wash the cover on my beanbag which I put my clothes for the next morning on. Is there anything else we can do??
This morning I went to put on a pair of trousers but there were two tiny little bugs on it, they were kind of like baby lice, but I'm not sure, and yesterday the same thing happened when I picked up my t-shirt. Could it be the beanbag?? But I looked on the web and it says lice can only live off a human's body for 2 days. I'd say it's been 2 or 3 days since the treatment, and as I say my scalp is really clean and there's no sign of eggs or lice at all. My Dad thinks I'm being stupid. Am I? Am I getting paranoid d'you think? I'm absolutely sure I saw the lice on the clothes this morning! Then again I jumped when a piece of dust fell on my ipod earlier. I don't know what to do, should I do the lice treatment again and wash everything in the house, should I go and see a doctor because I'm paranoid. The fact is I'm terrified of having to live with lice, one of my friends has had them since primary school and has been picked on for it, and I really don't want to go through that!!! I feel dirty and embarrassed (I know that lice live in clean hair and everything). I'm not going to school if I find any more in my hair next week. It's the first time I've ever had lice too. Please help and thank you in advance.