headlight electrical snafu...HELP!!!

[fasteract7]

Over the past year a couple things...first, the PS hi beam wasn't getting power and it seemed to be in the wiring bundle so took power off the DR side hi beam and all worked well. Occasional the hi's wouldn't come but a wiggle of the relay would put things right. Now...lo beams stopped..I saw 12V at each connector with low's ON but bulbs (tested OK) when inserted wouldn't light ??? All my grounds as far as I can tell test great. Messed a bit and now the DR lo beam works as do the Hi's/fogs but PS lo out despite seeing 12V at the connector..even hooked up a new pigtail connector but no go. A new developmwnt is the blue hi beam dash light is out after working in reverse (On for lo's, off for Hi's) for a while. 12V at the 2 15amp fuses and the 3 relays..the 2 flattish ones at the inner end of the box and the more square one on the front row.

Is this all a product of the inner workings of the engine compartment fuse box being bugger up?

All of you with Electrical degrees feel free to hop in.

Cheers