What Causes High BP Along With Nausea And Breathing Difficulty?

Hi, at the beginning of this year, I went to the ER after finding my BP was at 188/112. They admitted me into the hospital after finding my heart was enlarged and I was retaining fluids. Over a 5 day stay, they put me through several tests and found that I have severe pulmonary hypertension and congestive right side heart failure. Since then I was found to have Sleep Apnea and was prescribed a bi-pap machine to use. I was also prescribed 4 different meds to control my BP and for fluid retention. Now recently, my living situation changed drastically and I basically became homeless and sleeping in my car. Because of this I find myself sleeping through my normal med times and I ll end up frequently missing doses. Over the past couple weeks, my BP has been consistently high, even if I take my meds.. tonight, I was feeling nauseated and my chest was tight making it hard to get comfortable or breathe for that matter. When I developed a headache behind my right eye, I figured I d better take my BP and it ended up being 161/114. So my question is, should I just take the meds I missed earlier tonight and check it again after the meds kick in or should I bypass all that and head to the ER?