Q. There's something wrong with me Heartleaf Philodendron. Help!
There are hundreds of species of philodendron from tropical America. Yours appears to be the popular heartleaf philodendron, P. scandens. I believe the bare stemmed plant may be overpotted (too large a container). When did you repot last? When a plant is overpotted, and then watered, can stay too wet. Yes, in winter less watering is practiced. Also, you have a climber that needs something to attach to, such as a sphagnum moss covered thick wooden stake inserted into the middle of the container.
Link of images - https://www.google.com/search?q=heartleaf+philodendron+climbing&rlz=1C1GGRV_enUS758US758&tbm=isch&tbo=u&source=univ&sa=X&ved=0ahUKEwiZhfrM3-nZAhWEtlkKHc3iACAQsAQIJg&biw=1280&bih=617
Hope this helps.