What is happening here, could you explain?

[digaran]

OK, what is this doing in my wallet? I don't have any SW address starting with 3. they are shown in my wallet, my begging wallet on blockchain.info
How about this one? I am seeing those two transactions as "sent" showing 0BTC what are they doing in my wallet? bug, glitch?
One of the transactions has -31BTC as fee, how is that even possible?
Do I need to switch to another free web wallet?

EDIT: Somehow those TXs I was seeing changed. and I realized that some body else was using my wallet, my own freaking brother had some of his addresses as watch only on my wallet.
What can I do? I'm just a beggar sharing a laptop with a hoard of other beggars, lol.

[cryptopher1]

OK, what is this doing in my wallet? I don't have any SW address starting with 3. they are shown in my wallet, my begging wallet on blockchain.info
How about this one? I am seeing those two transactions as "sent" showing 0BTC what are they doing in my wallet? bug, glitch?
One of the transactions has -31BTC as fee, how is that even possible?
Do I need to switch to another free web wallet?

this is very hard to understand as well. i have a friend who had something similar

[digaran]

Lol, now they've been changed showing my own transaction and my watch only addresses transactions, full stop lol. looks like it when you see something on blockchain.info, data is not permanent, I was seeing multisig addresses sending and receiving on both ends, now those links show my own TX and my watch list TXs. I still have the same questions, one of the transactions had -31BTC fee. 
But it disappeared.