He was still hiding Heavily from the Empire. Dodging Storm Troops and keeping himself out of the lime light. This is about the time his Force Powers started to become effected from being suppressed for so long. I will get a little into his backstory....(which i am kinda piecing together as i write this lol )
During the Clone Wars, Galen Wolfrus was a Padawan under the Jedi Drex Altmon. (which hope is cool, i created this name) Surviving all major battles and skirmishes, Order 66 had taken the life of Galen's master. Galen managed to get away and seek refuge on Nal Kreeta. He spent most of his Young adult life and some of his adult life there scrounging. About 5 years living there he got introduced to a Bounty Hunter named Tracer. With Tracer, Galen had done a lot of Recovery work and Jedi Hunting. While hunting Jedi he managed to learn to suppress his force powers to the point where other Jedi could not sense him. This went on for a few years until Tracer managed to find out that Galen Wolfrus was, in fact, a Jedi himself. Tracer attacked Galen and was bested by Galen's Lightsaber. Galen returned to Nal Kreeta and gathered his belonging and fled.
About this time, Galen had heard of the Rebellion rising up against the Galactic Empire and Darth Vader. Being about 39 Standard years of age. He wanted to join the fight but being a Jedi (which by now, He wasnt fully aware, but his Force connection had been pretty much severed) he stayed out of it. After the Battle of Yavin, Galen headed to Dantooine. he settled there for good reason. An old Jedi Temple had been there for many many years and since the Empire had stopped their search for Jedi Galen would search it trying to reconnect himself to the Force and continue the ever going training that a Jedi endures.
So to answer your question, Galen is on Dantooine. So this is what he would of been doing 5ABY.
