He has had subsequent dyspnea on exertion which has recently worsened.
 The patient does not get short of breath with activity. 
(ROOT (S (NP (PRP He)) (VP (VBZ has) (VP (VBN had) (NP (NP (JJ subsequent) (NN dyspnea)) (PP (IN on) (NP (NP (NN exertion)) (SBAR (WHNP (WDT which)) (S (VP (VBZ has) (ADVP (RB recently)) (VP (VBN worsened)))))))))) (. .)))
(ROOT (S (NP (DT The) (NN patient)) (VP (VBZ does) (RB not) (VP (VB get) (ADVP (JJ short) (PP (IN of) (NP (NP (NN breath)) (PP (IN with) (NP (NN activity)))))))) (. .)))
( He ( ( has ( had ( ( subsequent dyspnea ) ( on ( exertion ( which ( ( has recently ) worsened ) ) ) ) ) ) ) . ) )
( ( The patient ) ( ( ( does not ) ( get ( short ( of ( breath ( with activity ) ) ) ) ) ) . ) )