4 days ago I was diagnosed with pleurisy and I had a chest x Ray and a blood test to check for clots and they came up fine. But every time I lay down for a while I can taste blood and I get up and can Cleary see it in my saliva. On a side not I haven't been able to exercise to the same extent I normally would and have had little appetite for the last few months. Have not had a proper solid bowel movement for nearly 2 years either. I do smoke marijuana daily and have smoked cigarettes for 10 years before quitting just one week ago. Should I go get more tests?