The problem comes is the suggestion of travelling to destination X (in your case, the Bahamas) doesn’t just pop up out of thin air - friends may have travelled there recently, perhaps there has been a recent advertising push, etc.
Another family member looking up some destinations to travel, then speaking with you later - same external IP of the home wifi being reported, bam you get advertised the destinations they looked at the most.
Choosing a “random” topic again also doesn’t come out of thin air.
What a cracker of a question!
Short answer, yes.
Long answer, what sorts of side effects happen as a result of said medication? I don’t think there’s a single medication or even supplement out there that doesn’t have some sort of side effect (e.g., ibuprofen can cause gut bleeding, iron supplements can lead to constipation, grapefruit can screw with all sorts of medications), so balancing the cost benefit ratio is important.