Any one else have this feeling or has had it in pregnancy?

I am nearly 37 weeks and for the last few days I have been nesting and should be taking it easy but just need to clean clean clean I have over done it though as I hurt my self and resulted in having scatica in my leg and very painful but now tonight I was sitting down resting and I come over all funny and feel really sicky too , haven't been sleeping good either for the last few weeks but been worse this last week or so also had a cold , sore throat and still got a cough , haven't been ill in my pregnancy up untill about 2 weeks ago , my body feels sore and achy and tonite I have also been having some pressure down below ?