<s>[INST] Good day i got PE 9 months ago after a 10hour flight. i was on warferin for 6 months and finished that 3 months ago. i had to do a 7/8 hour drive over the weekend and i now have pain in my back (it felt like muscle pain) for the past week and it is getting worse now (more sharp pains) and the skin is getting numb. Is it possible that it could be another bloodclot? Kind regards, Elaine [/INST] Hi, dairy have gone through your question. I can understand your concern. You may have mostly muscular pain due to some spasm or strain. However, you have history of pulmonary embolism, so you should go for D dimer test and coagulation profile once to rule out any chance of clotting. For muscular pain you can take analgesic plus muscle relaxant Chat Doctor.  Consult your doctor and take treatment accordingly. Hope I have answered your question. If you have any doubts then feel free to ask me. I will be happy to answer. Thanks for using Chat Doctor. Wish you a very good health. </s>