Hi WalkingbyFaith, if it comes and goes, and it's a faint red/pinkishness, it sounds like Bart. Does it itch too (before it fades)?
When I shower, one of the things I notice is that upon contact with hot water, I sometimes get reddish streaks on my thighs that come and go (this still happens occasionally- guess they're striae but they don't stay - just come and go.) They also don't have to be shaped like streaks - any reddishness/ pinkishness on the skin, is likely Bart. Again I'm not a med professional but this is just from my experience.
Even when not showering, sometimes I get reddish/pinkish areas on my arms or thighs etc. Since I only have Bart and never had this before in my life, it's definitely a sign of Bart. I don't know if its a way it helps me know where the Bart might be concentrated on - for instance, my thighs, my elbows, etc.
Bart since Sep '16 from cat bite. Cat died days later. Undiagnosed for 9 months. Around July '17 started ABX. Current symptoms: aching knee joints, elbows and swelling. Other symptoms (headaches, severe lymph pain, eye inflammation, vision problems, severe weakness, fevers, etc) mostly gone.