Hi, I'd like to help you with your question.
Anna has not been on Just Answer for a while, so I hope it is ok that I help you.
I agree with whoever gave you the diagnosis of OCD. When you describe intrusive thoughts, obsessive focus on your jealousy, feeling ill and feeling that your mind does not switch off you are indicating symptoms associated with OCD.
You may not have been able to find relief yet because your problem is both emotional and physical. The physical feelings that you have are as a result of how your brain operates. The sympathetic nervous system, when aroused, causes production of many different chemicals in your body. These include adrenaline, cortosol, and in males, testosterone. At least two of these chemicals are toxic to your body over time and can cause symptoms ranging from extreme nervousness, nausea, vomiting and sleeplessness.
OCD is caused by a lack of serotonin and possible structural changes in the pre frontal cortex and basal ganglea of the brain. This is typically addressed with medications. Medications can reduce or eliminate your symptoms. Finding the right medication takes some trial and error. Getting your symptoms to a manageable level so you can get treatment to reduce or eliminate your OCD symptoms is vital. If you feel you cannot function, then any other treatment options won't help. Whenever medications are used for treatment, it is very common for people to need to try at least one or two different medications or more before finding one that helps. This is because everyone's body chemistry is different. So if one medication works for one person, it may not work for another or it might even cause adverse side effects. So don't be discouraged. You will find the right medication for you.
Therapy can also help you learn to control your impulses and behaviors. You indicated that you felt you had not been helped in your previous attempts at therapy. It sometimes takes a while to find a therapist that is trained to address OCD. You may want to try your search based on this diagnosis and see if you can find a therapist with more expereince and training in OCD.
Also, learning more about OCD through self help and education can help you find better ways to manage your symptoms. Here are some resources to get you started:
You may also want to consider support groups either in person or on line. They can help you feel less alone and provide you with much needed support.
I hope this has helped you,