Dear Doctor/s!

I would very much appreciate if anyone could give me an advice.

In the past 2 weeks I have been having a very strange aches with bruise like appearance and pain on my feet, fingers, wrists, arm... always one or 2 places at a time and next day or in a few days the ache appears in different place.
As well as that I noticed an appearance of burn like rushes on my stomach, chest, back... they usually dissappear on its own after several hours, but the place of the rush feels hot and itchy.
Any idea of what could this be? I can't find similar symptoms anywhere on Google.
Thanks a lot.

Jana