Identification of this insect
This looks like an ant, but I cannot say which species. Their small size, colour, bite and being found indoors made me think of Pharaoh ants (Monomorium pharaonis), but I haven't heard that they smell bad. Ghost ants (Tapinoma melanocephalum) are rather similar and have a foul smell when crushed, and have been found indoors in Europe. They usually have a dark head/thorax and lighter abdomen though. They can also be separated from Pharaoh ants by having a one segmented petiole (the Pharaoh ant has two). A closely related species to the Ghost ant is Tapinoma sessile, which also smells but has a uniform colour (usually darker than your specimen though, see picture at bugguide.net). The petiole not being clearly seen in your specimen points towards the two latter species, or other species with a short/hidden petiole (see hidden petiole at antkey.org). However, these are only a couple of suggestions, and there are probably many other possible species. 

Termites have larger mandibles (jaws) relative to their size, and no distinct narrow division between thorax and abdomen (your specimen does). Your animal also has eyes (termites don't) and I think you can spot a long first antenna segment, which ants have (hard to see in the picture though).