lifting heavy things

I haven't added any weight to my deadlift in several weeks. Every time it feels like such a struggle I just can't see putting any more weight on the bar. Maybe it's hard to build that strength at the same time that I'm stretching distance in my long swims. Maybe I'm having trouble getting enough quality nutrition. Or maybe I'm just being overly cautious. But I really do think that I'll be able to slap a few more pounds on there soon. At least I know that I'm not backsliding and losing strength.