I've multiple wallets and I was wondering if I keep transferring bitcoins among these wallets (my own wallets ) will that eventually consume all my coins (keep paying fees )?
First of all, what's your purpose of having multiple wallets if you have the same coin you're handling? You're wasting your coin by transferring to multiple addresses because whenever you transfer your coin, it require fees. Better to have one primary wallet.
Each of his wallet could be on a different device (hardware, desktop, mobile, wallet) or one wallet is used as a cold storage. Having one primary wallet can be risky spreading them on different wallet reduces the risk of losing all of your coins.
This is funny, why do you want to keep doing that? Will this not amount to wastage of your funds since they still belong to you, or just an effort from you without any value been added!
I've fractions of coins in multiple addresses so I was thinking to "put" them all into one single address, and now it seems that will cause the fee problem
If you're not in a hurry set a custom fee you don't have to spend a lot on miner fees unless your wallet doesn't allow it.