Hi all, we are buying a 300yr old terrace and have noticed that on the second floor internal wall between our house & the neighbours there are numerous large solid bulges. Although the floors are uneven upstairs there are no cracks on the outside of the house. The bulges have been wallpapered over in all the bedrooms but i can't feel any cracks and they appear to be longstanding. Has anybody else encountered these or know what's caused them? Also, would you expect these in a 300yr old cottage as part if the character or would you try to remove them?