Strange Squealing, Knocking, and Ticking

Replaced head gasket, timing belt, and water pump about 3 months ago. I also switched to synthetic oil around the same time. I've been having a ticking sound for a little bit now, but as of recently I've been getting this squeaking, squealing noise and the knocking as well. I'm thinking valves. Anyone have any ideas? Using 5w-30 Synthetic

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