”The severest level of miserliness is that a person is miserly towards himself despite being in need; for how many a miser has wealth and falls ill, but he does not seek medication.  He yearns for something but miserliness prevents him from (getting it).”

[Mukhtasar Minhaaj Al-Qaasideen of Imaam Ibn Qudaamah Al-Maqdisee (rahimahullaah) page 218]