Should I worry for this number of Aborted clients & connects?
Those are counters; they are useless without dividing by Uptime or Connections.  I would say something is wrong if

Aborted_clients / Uptime &gt; 0.3 / second
Aborted_connects / Uptime &gt; 1 / second
Aborted_clients / Connections &gt; 30%
Aborted_connects / Connections &gt; 8%


If you exceed any of these guidelines, look into


making sure that your clients do disconnect, and/or
increasing max_connections (but not too much), and/or
increasing wait_timeout


"gone away" comes from network glitches and/or trying to hang onto a connection "too long".  See the various %wait_timeout settings.