At 6 weeks if he is showing hunger cues (I assume you are breastfeeding from what you wrote?) then I would be going ahead and feeding him, especially if he is feeling a little under the weather from immunisations. The EAS pattern is something to aspire to but I did find with both of mine in the early weeks sometimes we did just need to roll with the variations and accept that feeds would not necessarily be as 'strict' as a textbook 3 hour EASY. Tracy would have wanted us to respond to our babies cues, and certainly would never have suggested delaying a feed just for the sake of routine. Resettling naps is almost a slightly different question - if you think LO is awake because of hunger then I'd do a sneaky feed and straight back down, almost like a night feed. If you think it's because of overtiredness, too much stimulation or just random short naps as commonly happen at this age, then I'd give it a short go resettling and if no joy, just get on with the day
That's with the benefit of hindsight though! Others may suggest you should try to resettle until the nap is officially over but to be honest even trying for 5 mins or so I know if it was going to happen or not. Life is too short to be stuck trying to resettle such a tiny baby - get out and enjoy him!! Good luck, the EAS pattern will come with time if you have that in mind as the goal - baby steps to get there are just fine x