Ok so i've been adjusting my bass as i was getting a bit of string buzz up at the high notes, i was told to adjust the truss rod a bit and give the neck some more relief. Then i was told i could've just adjust the saddles and increased the string height. Nonethless, my guitar is a bit messed up now. The strings are in tune and the intonation is right, however as you up the frets the strings are further away from the fretboard the higher you go, so it's curving upwards. Getting major buzzing on 1st/2nd frets. Now, can this be fixed by adjusting the saddle (string height) or do i need to adjust the truss rod, if the latter would i be giving the neck more relief or tightening it up? Any help, would be great.