I Did an Irish Red with Nottingham and experienced a similar tatse to what you are describing. I fermented that at about 71...too high. I also fermented a pale ale with Nottingham at 72 and it had a funky peppery taste to it at first, but I wouldn't describe it as yeasty...the off flavor in my pale ale dissipated after about 6 weeks in the bottle and the off flavor in my red mostly dissipated in about 8 weeks after bottling, but was always there a little bit (although it might have only been apparent to me at that point) and, at that level, was actually kind of pleasant. Mine were both in primary for 3-4 weeks, so I had a headstart on conditioning as compared to you. Put it away for four weeks or so, then try again. As u will read on here, time fixes a lot. It is interesting as a new brewer to taste your beers here and there through the aging process as others on here will suggest....you do learn a lot about flavors, etc. Also, I have learned to pay a lot closer attention to to my fermentation temps. My basement is 68 throughout the year, but, off the groud on a shelf, my first few fermentations were above 70 in the bucket. I have since moved my fermentation buckets to the basement floor (this works in my climate might not in yours) which keeps them between 64 and 68 depending on time of year, ground temp, etc. Good luck.