Am travelling in Vietnam, and awoke in the morning to find blotches similar to bed bug bites in common areas to where you would expect them. Presumed it was bed bugs bit the next day, a different hostel I now have red rashes all over my back, front and sides aswell as my buttocks that have swollen slightly and look like an allergy, alongside this I have swollen lips? Any ideas? They aren't itchy but obviously not right, have been in the sea the day before swimming in the Plankton so maybe this is something to do with it?