I am surprised that you were not evaluated better if you saw a psychiatrist. If you are experiencing a severe lack of concentration, then you are in need of help to resolve this problem.
If you are able, you may want to consider having another evaluation done by a mental health professional. A therapist can help provide you with a full evaluation that includes a screening for ADHD. You can find a therapist by searching on line at http://therapists.psychologytoday.com/rms/. Your local community mental health center can also help. Contact the United Way for information. They will know all the resources in your area that can help you.
Counseling can help with both Bipolar and ADHD, but both of these disorders are best treated with medication, with counseling as a support to help you to cope with symptoms. Since you have taken an ADHD test, you are somewhat familiar with the symptoms ADHD causes. Here are a few more:
Hyper focus- Although you may feel distracted by things that do not interested you, you may become totally absorbed by things that do interest you.
struggling to complete tasks, even simple ones
missing important details
trouble listening and remembering details
You may feel disorganized and frustrated, and feel impulsive.
Bipolar is related to depression but is marked by severe highs and lows. Here is a link to help you understand Bipolar better:
Along with the medications and counseling, support groups can also go a long way in helping you find better ways to cope. The Helpguide link above has support groups listed as well as the United Way will know about ones in your community. So the first step is a diagnosis to confirm whether or not you have either diagnosis then treatment and support to help you learn to cope.
I hope this has helped you,