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I am Dr.R.K and I am pleased to assist you.
You have not mentioned where exactly you feel the pain.
Do you suffer any weight loss?
Endoscopy and scan done?
Please get back to me with these information.
Patient replied :
The pain appears in Epigestric and Umbilical areas, and it comes and goes. It disappears after 1-2 hours of waking up. I just wanted to note that I have not experienced pain in the past couple of days probably due taking PEPCID, or the problem was solved. I'm planning to stop taking the medication since no symptoms appear and I don't want to take it due to the side effects it might cause. If the pain returns then I'll start taking the PEPCID medication.
Anyway, the only thing I felt was a movement in the mentioned areas when I went to sleep last night, but it's nothing serious it's just a slight movement that feels like a heartbeat. I know there are many things that I might feel due to beign skinny, but it's out of the usual and it stops after some hours.
You should always continue PEPCID for 2 weeks, because that will ensure less such recurrences in the future,
Also, regarding the heartbeat, you being skinny as you mentioned, you can feel the normal pulsations more than a few other individuals.
However, it is better if you can get a CT SCAN done, and follow-it up with me.