ok so after leaving my wallet up for 5 hours, that unconfirmed transaction has reappeared.

The transaction is 35035 bytes long and looking at https://bitcoinfees.earn.com/
I chose 0.0007 mbtc/byte = 25mbtc, which ends up being about 8% of the btc being transferred.

Hopefully that will work.

I'm using electrum 3.0.4 on windows.

I have send to my electrum wallet, a transaction with too low fee, and its been over 1 month and still unconfirmed.
That transaction was showing up in electrum history as unconfirmed, but not anymore.
I wanted to use "Child pay for parents" but without the transaction in history for selection, I don't know how to proceed.

Is there anything I should do to get that showing up?