When it rains...non-flushing toilet; non-draining washer; to little hot...and so on

[SpiceLand]

When it rains, it pours...non-flushing toilet; non-draining washer; too little hot...and so on.

And even more issues listed below.

What could be the problems - I mean solutions to this mounting mess?? And if the plumber/septic folks couldn't help and Mr. Appliance couldn't find a problem either, then who can?? Who should we call next????????