It sounds well within the range of normal. Likewise, freewheel wobble is normal.
In any case, a thump that you can feel is usually (almost always) related to an out of round wheel.
This could be the wheel itself, or simply a poorly mounted tire. Spin the wheel watching the tire with reference to a fixed point looking for high or low spots. If you find any, then spin the wheel slowly watching the reference line molded into the tire just above the rim. Check both sides, and if the reference line is uniform, spin the wheel checking the rim against a reference.
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