I live abroad in a tropical country. Mattress, bed and all furniture were bought new. We've not travelled anywhere in 2 years. In the last 6 months I've a few itchy bites in odd places - on my bra line, and now one on the top of my leg - not places where I tend to get bites when out. I've had one or two every month or so. They are different from mosquito bites which are very common here - itchier redder for longer. My toddler who we cosleep with got a bite on his leg that swelled up, but calmed down after a day and seemed a bit itchy on the first day. DH has not had anything. I know bites affect people differently.
I've examined all the seams of my mattress and I'm just not sure. I've found what's probably dust or debris - it's fairly solid, not smearing. My little one has had so many nosebleeds into the sheets, mattress and mattress protector, it's impossible to distinguish from tell-tale stains. I can't see anything in the joins of the frame. We have a very small amount of furniture - just a floor bed in that room.
I'm not sure what to do! It seems like overkill to call in professionals when there's so little evidence. I'm googling the heck out of it but I can't find much to help.
Any advice please?