Thank you that was helpful. Instead of going to "Receive" and copying that address, I went to a past transaction and pulled that address like you said. A balance DOES show up now but it's around half the balance in my wallet. Very confused.
Most likely, your wallet generates a new receiving address every time you want to receive some coins. At least that's how most of today's crypto wallets work. Your total balance is likely spread across multiple addresses, so to see the total amount of coins in your wallet via blockchain explorer, you'll need to check each individual address one by one. Alternatively, if you want to explore all balances and transitions at once, you can try the xPub key method, as described here:
How to analyze a Bitcoin (BTC) extended public key (xPub) using a block explorer.