Hello I have found in my old notebook this: "bitcoin armory wallet and password", is there anything I can do to check if I have any BTC in there?
If the notes you have for "bitcoin armory wallet" looks something like this:
abcd abcd abcd abcd abcd abcd abcd abcd abcd
abcd abcd abcd abcd abcd abcd abcd abcd abcd
That is to say, it should be two rows of 9 groups of 4 characters... then it is likely an Armory wallet "root key"... the "password" may have been the wallet file encryption password (not necessary if you have the root key as you can simply set a new password when you restore the wallet) or it might have been a "Secure Print" code used to encrypt the "root key".
If you have the "root key", then you can simply install the latest Armory from here:
https://btcarmory.com/ and then restore your wallet using the "root key". It won't show any bitcoins until you also install and fully Bitcoin Core, but you will be able to see your bitcoin addresses and could check them on a blockexplorer... or alternatively you could export your private keys and import them into a different wallet like Electrum to check balances/transaction history etc.
For private key export, refer:
https://bitcointalk.org/index.php?topic=4746784.msg43255691#msg43255691