2001 Camry

My 2001 Camry LE (4cyl.) had the check engine light come on and i had it read at Autozone, they said the codes were
1. P0440 (x2)
2. P0441 (x2)
3. P0446 (x2)
4. P0300

After I had it reset, I drove for appx. 200 miles and then the engine started running heavy and seems loud.
Is it okay to drive like this, and what seems to be the problem?

Thanks in advance.

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