There's probably nothing wrong with your strings, unless they've been on there for a long time. Fresh is good y'know?
More likely is that your axe needs to be set up, including an adjustment of the truss rod tension in the neck. Unless your picking action is much too heavy for the strings, they shouldn't buzz. Light strings need a light touch.
Have a competent tech take a look at it, and they'll let you know what's up, what to do about it, and what your options will cost.
Lordathestrings
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