Of course I also have different sides, but I don't see them as so contradictory that they deserve the name alter ego. They complement each other. They have intersections (Heike the businesswoman also likes to be silly and cheeky and unconventional, Heike the horsewoman remains calm and relaxed when the horse has other plans, Heike the mum still enjoys rustling fallen leaves...). That's all me. I don't like to play different roles in different situations. You said it: too exhausting - and completely unnecessary!